I am also thinking of going and renting either a Razr or Rezound, but will wait till Friday. If the rumor of a Friday release isn't true then ill go ahead and get a new phone and have some fun. Also Friday is my Birthday so no matter what it's going to work out!
Only thing I will miss is root and rom. I switch my roms pretty frequently but I am not going to mess around with a phone I know I am only renting.
Blasphemy! The first thing you should do is pick up a Rezound and root the hell outta it. Have you seen the screen in person? First phone I've seen that's looked better than an iPhone. I wouldn't touch a Razr though. When you're done "renting" your device, unroot it and be on your merry way. That's my plan. Either that or pick up a Dinc or Crapinate off ebay to hold me over. SBF'd my OG this weekend and it's still a laggy p.o.s.