Who says you can't make a socket for a BGA chip? Just wait till Augat or someone like them gets wind of this and engineers a nice socket for the bugger.
It WILL happen. There already ARE sockets for BGA memory chips for the device programmer market. The LGA chips are very nearly BGA as it is, the only difference is the pads are gold plated instead of solder balls. Another solution might come from the guys at Smardtboards. They make BGA breadboards that are easy to solder to.
Back in the good old days of home built PC's (1980's) most motherboards were sold with CPU chips already installed in sockets. When they started selling them without CPU's people started crying about price fixing, but got over it. I wouldn't mind buying a tested motherboard with a cpu in place. There might be fewer choices such as better featured mother boards coming with the more expensive processors and visa versa..
Finally, if this gives AMD a shot in the arm, even better. The only thing I don't like about their CPU's is the higher power draw compared to Intel.