This is what I have to say about a PS3:
Obviously, the biggest issue for most people is the cost. I have never seen this as such an issue, even as a college student making payments for tuition, a summer job easily covered the expenses of a PS3.
The main reason I got a PS3 was for the type of games that have been and will be released. I do not care about an Xbox Sony war, people who take sides over corporate names are idiots. Who gives a shit about commercialism competition? As long as they keep producing the games we like.
I will say this: If you're getting a PS3 solely for the technology, it is not worth it. While most games are released on 1080P and look quite amazing, if you don't like the gameplay, what good is it? If you're a halo fan, go for Xbox.
Another reason to get the PS3, is if you're an avid fan of High definition dvds and movies, there is obviously a blue ray player built in the to PS3. Where as other brands of Blue Ray players cost $1000+, you might as well get a $600 console that plays games as well as high definition movies.
Once again, I bought a PS3 for the games and for the blue ray playback. As a college student paying his own tuition, I still don't see how so many adults can complain about price IF gaming is their priority. If not, you really can't lose with one of the other 2 consoles.