I used to wonder why tv people cared about demographics, like why don't they care what I want to watch on TV? I BUY STUFF!! But it is because after years of disappointment, I no longer have a burning desire to buy things I see advertised. Now and then I'll think oooh, I want that, but it usually fades. I don't mean that ads don't have an affect on me, they still give me a little twinge sometimes, but it's not the same. Not to mention the fact that I have already decided which laundry detergent, deodorant, shampoo, and toilet paper I like the best.
I remember once when I was about 12 seeing an ad for some terrible greatest hits album, and I wanted it so fucking much. I wrote all the information down, I had to wait for the commercial to come back on so I could get all of it.. then my mom wouldn't get it for me, lol. I was that way about lots of things I saw in ads. I thought if I didn't get it now I would never get it. I am sure I was a pain in the ass when I was a little kid.