Buying the PS3 for blu-ray compatibility is a good choice. Similar research done by myself also shows that the PS3 is cheaper than all other models, plus you get to play games
However, I did read about t.v's and blu-ray, HD related issues. Some t.v's cannot handle the signal or output. Something to do with 1080p or 1080i, some t.v's can only reach the lesser and so unless you havea t.v that can handle it, it's a waste.
Also, with the HD war over I'm sure blu-ray prices will not drop, i'd wait a bit until they do drop, just that they are soooo friggin expensive and eventually your eyes will adjust right?