Yeah, remember how well that $99 GBA Micro sold? And how it's still $99?
As pc999 said, flooding the market with titles at a high price point could be counterproductive. Personally, I rarely buy new games. I didn't buy a single Xbox title new when I had one (had around 6 games), and of my 34 Cube games, only 8 were purchased new, but most of those were at full price. The thing is that if you wait around for a price drop, by the time you do, it's almost impossible to find the title new on the shelves, so you're more likely to pick up a used title anyway. As it stands, most games have an extremely short shelf-life before they're only available in the used bin. That would seem to explain why lots of games have almost all their sales in the first few weeks. A lower launch price could very well result in more people buying the game at full price rather than waiting for used copies to hit the bins (which can be a real crapshoot--there's no guarantee you'll find what you want).