I'm not crazy about the rear end either, but it probably won't be an issue for me since the price tag will keep me away from it for a long time. Like others have mentioned, I will focus on upgrading to a C6. At almost 64 and retiring in April I'll be tickled to have a C6 in my drive way, and I will try to get a new one or nearly new (under warranty). With my old football and runners knees, who knows how long I'll be able to get in and out of a vette, so I want to enjoy it while I can and not break the bank doing so. Plus the issue in NE Ohio is, you always need another car for the crappy winters we have.
I think it's going to be a great opportunity to get a new 12 or 13 for a significant discount.