I wouldn't say that at all. It just when people are busy buying lots of things/researching products and trying to keep track of prices in their minds, they start from the highest digit and work backwards. Often people's subconsciousness plays a trick on them. It's quite effective on most consumers, whether they realise it or not. No offense intended, but it seems odd to me, that someone would ask a question about something, that is marketing and business 101 and then call people who fall for it ignorant.

it just seems ignorant to me because i've never fallen for that X9.99 price.

Oh bugrimmar, you have. Believe me, you have.

You cannot beat marketing. They are much slicker than you could ever believe. Trust me on this.

This is the equivilent of my dad saying comercials don't work, then asking if we want a chocolate bar about 2 seconds after a hershey's chocolate bar comercial airs. He may not have went out and bought some then, but he just ate the ones he has left and needs to go buy more now...

whenever i buy something, i purposefully round it up. even if its 54 dollars, i say its 60 dollars. if its 6 dollars, i say its 10. that's just how my brain works. so no, i've never fallen for that marketing campaign.

Tell yourself that if you'd like, but it's not something you "fall" for. It's a trick on your subconscious and it does effect you whether you recognize it or not.

I think by now it is slightly pointless, everyone knows what they are trying to do

         Really? Did you realize you just put 0.00 in your 1st post instead of 10.00?

         Good for you, for consciously avoiding a marketing tactic, without even knowing how it worked. Even the thriftiest shoppers fall prey to it, rounding up or not. I find it hard to believe you would be any different, unless you always calculate everything very carefully, before you go shopping or barely buy anything at all. You already said you round #'s up. So, that can't be the case. There's always that 1 time, your mind makes a slip up and that's what companies are banking on. There's nothing ignorant about that. It's just the way the human mind works.

The point of the X9.99 figure is paychology. There's a powerful effect when you're TECHNICALLY under the psychological barriers that helps push sales, but the one-cent difference isn't actually significant enough to hurt your revenue by very much.