COD4... I should of rented it as I really only enjoyed the SP.
Eyetoy... self-explanatory

I bought Gundam target aquired for the PS3, i only paid $20aus but that equates to about $240 per hour of total play time...

I would have waited until Mario Galaxy or Super Smash Bros Brawl came out to buy my Wii instead of getting it at release.

I would have waited until the format war was done and Blu-ray releases were prolific to buy my PS3 instead of getting it at release.

I would still by my 360 when the Elites came out.

I never would have bought Nights: Journey Into Dreams, GT: Prologue, Warioware, Super Paper Mario and Culdcept Saga.

And I would have purchased Eternal Sonata at release instead of waiting for the extra features PS3 version that may never happen in the US.

Shoulda never bought that Atari Jaguar. Aside from Alien vs. Predator and the definitive version of Wolfenstein, I might as well have lit my money on fire and pissed on the ashes.

Well..i wouldn't have bought the Xbox only for Fable 1...

Ahh...so ignorant was I

This. Execpt switch friends with little brother. I guess one day he figured out you could but new games online, and went on a buying spree. I mean, what the hell are "Star Soldier" and "Defend Your Castle?" What a waste of points. Although, i have to admit, Star Soldier kinda grew on me. :)

My worst purchase had to be Pokemon Battle Revolution. I've never been so let down by a Pokemon game in  my life. this isn't Stadium 3, this is bullshite. Anyone who played the game knows it is just a waste of 50 bucks.

Getting in line at midnight for Command & Conquer 2: Tiberium Sun... So not worth it..

 I bought it for the same reason and played it for a couple of days.  I then used it as the 2nd game of 2 at Gamestop for their recent "trade 2 Wii, PS3 or 360 games and get $10 extra credit" deal.  They actually gave me $7 trade credit.  Kept the Wii-mote obviously.  When you added the extra $10 I got for putting that with MGS4, it worked out pretty good.  $30 for MGS4 + $7 for Wii Play + extra $10 gave me $47.  Not bad considering I technically only paid $10 for Wii Play and $60 for MGS4.  It was like I got to rent them both.

1. Buying an Xbox 360 and getting the ring 3 times
2. Buying Ninja Gaiden Sigma for my first PS3 game (great game, but didnt know about Resistance).
3. Trials of Topoq (should be No.1) for PS3.
4. Eye of Judgement-only brought it for eyetoy.
5. Grand theft Auto Vice City for Xbox, when I already had it for PS2
6. Never Getting into the MGS series befor MGS4.
7. Never played a Final Fantasy game.
8. Never played Gran Turismo before GT5P.
9. Buying a PS3 at $600 a week before the $100 price drop. (this probaly made me the most angry).
10. Buying Pokemon Snap-One of the crapiest game ever (pretty much had no plot).
11. Buying THE worst game ever, Action 52.

and thats all a I can think of for now

 It totally blows me away that people have had the patience to put up with repeated RROD.  The first one would have pissed me off, but I would have accepted it as "just one of those things".  The second one would have meant bye-bye for me as a 360 customer.  No way in hell would I have put up with this like some people have.  I'd rather stand on my own nuts.