whenever there's a FA available everybody screams heat or lakers , why ? if he wants starter minutes the obvious choice would be detroit or stay in denver where Ty lawson will be starting sooner or later. I think deep down he hates lebron when the cavs beat the pistons and he is close friends to KG, he has a ring already, so he might be convinced to come to Boston.
In this case it has to do with role. But all things being equal, when there is a vet buyout, generally the potential landing places seem to have to have:
1. Very high championship odds (Orlando, Boston, LA, San Antonio, Dallas, Miami, Possibly OKC, Chicago).
2. Playing time/role fit. This is where, for Billups in particular, LA and Miami jump out. He absolutely supplants Fisher or chalmers and gets 35+mpg and an important role. Not so in Boston, Dallas, San Antonio; he doesn't even start. If it were a sf,pf, or c, no one would be saying LA was a great destination: Bynum, Gasol, Odom, Artest, Barnes...crowded. But if it was a center who still commanded a starting gig, people would absolutely be saying Miami.
3. Friends
4. Location (generally miami/orlando/LA get favor here)
So in Billups' case people say Miami or LA because it's a desirable location, he plays an important role as a starter immediately, and both have legit title chances.