I worked for Gamestop for 3 years, and in that time I can testify to their abhorent practices in customer service, as well as for their employees.
-When I first was hired I was told of many advancement opportunities and how I would be treated as a valued employee. As time went on it was anything but.
-In the first 2 years I worked there, I did not receive a single raise even though I scored a 4/5-5/5 each time. It was due to minimum wage increase(less than 20 cents) that they felt they did not need to give me my designated amounts.
-We were told that in order to retain our job we would need to bring in numbers. These were based on how many GStop Cards you convinced people to move, and reservations of games. They demanded some of the most hostile practices towards customers. We were even told to lie.
-Anytime a customer comes through the door, within 3 seconds you need to ask them whether they have any trades/want to make a res/ etc. We are told if the desk is manned by someone else, the other workers are to follow customers around and badger them of their wants and needs.
-We were encouraged to sell CERTAIN games over others, regardless of actual quality. The games that we advertised on posters the most was meant to e pushed. Encouraged to say, do anything to get them to reserve it. The most frequent lie is that if you dont reserve the game there won't be any copies left even though on most AAA titles we usually get enough to last us a month. It is actually the niche titles ppl should reserve because stores will get very few copies.
-Many people employed at Gamestop have NO idea what they are selling, no gaming background what so ever.
-Many stores have a console bias of one or another. It usually stems from the managers and they hire only those who hold the same alliegence which actually was a cause for me almost getting fired on several occassions. My Manager at the time was a certified Microsoft Rep and he would get pissed off if I ever pitched a PS3 vers of a game. He would also blatently lie about many games to discredit PS3 titles, very petty.
-This manager was a total prick(mind you I had seen more than a dozen different teir managers by the first year). He had a strong dislike for me because I would speak my mind and would correct him on things. He cut my hours to basically nothing for almost 2 months, putting me in debt with bills. Thank god he was re-assigned, yet even on his way out he tried to convince the nxt guy to fire me. Luckily the guy gave me another chance and then praised me for putting up with the last guy, as I was THE best employee in the store.
-Used games are all you are suppose to care about, developer profits be damned. And yes, it is true many employees "check out" the games when they first release, using brand new copies that will be resold as new.
-And the most under-handed thing to happen to me there. I was in the middle of being trained as a 3rd Key Manager in my 3rd year, but then 2weeks before they informed me of my store's closing. Which gave me no time to find an alternate job. I got a choice of a weak severance package or being relocated to another store which was already over staffed(no hours available).

SOunds pretty brutal.  Seems this article is accurate than.

As a (three week long) inventory taker, i can tell you that retail outlets idiot-proof most everything. So long as the woman knows what her size is, the size of the merchandise will be clearly marked.

I both love and absolutely hate GameStop. I despise that they persist and pester people about pre-ordering games when there hasn't been a shortage of retail copies of games in my memory since Wind Waker at launch.

But what really grinds my gears is when they make up release dates and refuse to accept that they're wrong. Also, their accessories are overpriced and many people who go in there without a lot of knowledge of video games are going to be swindled and taken advantage of. They do the same thing as Best Buy, but at GameStop it's magnified by 10 because people who walk into GameStop assume the employees are all-knowing experts, and they're the furthest thing from it. I regularly correct GameStop employees about release dates or just random information that they're no up to speed on.

How in the world could you like A place like Gamestop? :P

I save 10% on used games I buy from the store, if you trade in 7 or more games at a time, you get extra trade in credit, and you actually get a decent amount of money. For example, I got 25 dollars for Pokemon Black. I got 40 hours out of that game. Seems like a good deal to me.

And for all the money I've spent, I get point that I can use to get rewards. A couple weeks ago I redeemed this Mario wallet, it's pretty awesome

and I still got plenty of points left to spare.

The overall Gamestop experience might not be as good of a deal as I could get on eBay, but it's much more convenient for me. And the people at my Gamestop are friendly :)

So... you buy Used Games, huh? Ok, ok.

What's wrong with buying used games? all of my PS3 and 360 were purchased pre-owned and I have quite a collection, I only buy Nintendo consoles' games brand new,  the preowned games is a good way for people that just cant afford that $60 tag, people do it with cars, electronics so why not games ?

I see where this is going. I don't always buy used games. I didn't really get into buying games used until last year when I got my PS3.

95% of my Wii games were new when I bought them. Same for my DS games. I support Nintendo because it was my first game company and it is my favorite.

PS3 is a different story. It's not very easy to find new copies 3+ year old games at retail stores like Best Buy, and so I bought used. That was the only way I could find some of the games. The games I've bought new are Skyrim, Battlefield 3, MW3, Uncharted, and Tomb Raider Underworld. And I supposed you could count the digital games I've bought/received from PS+ on PSN as well. Some of the games I've bought from PSN: Assassin's Creed 2 Deluxe Edition, Ass. Creed Brotherhood Deluxe, Journey, Sly Cooper Collection, a couple Pixeljunk games, and Castlevania: Simphony of Night. 

Many of the used games for PS3 that I've bought have been bought during a Buy 2 Get 1 Free promotion at Gamestop. During the most recent promotion, I got Assassin's Creed Revelation, Uncharted 3 (lucky me my receipt came with an online pass code), and Fallout New Vegas Ultimate Edition. they were each 35 dollars. With my 10% off discount for my Pro membership, and with the promotion, I ended up paying $60 dollars for 3 very good games. I am an American after all, and we like our bargains. 

I've only seen a B2G1 promotion like this at a retail store once. At Target, during which I bought The Conduit, Twilight Princess, and Rabbids Go Home.

I am after all a college-bound student without a job, so I'm not exactly rolling in the dough.

Lol, I was partially kidding.

If you can't buy some games new I wouldn't be mad at you! :P But if you can buy all games new then that's even better!