Sigh...
To all of you saying it's "foolish" not to get AppleCare - I personally say it's "foolish" to spend $350 on two extra years of purely manufacturer defects, when you could be spending $70 or less a year to get true insurance, which covers theft and accidental (which are the real issues with computers). The fact is, $350 is a TON of money to be spending on a strictly defect-based warranty, especially for only two years.
If you get your MBPR with the correct type of credit card (AMEX/Visa Signature - check with your cardholder to make sure), the insurance will go to two years without buying anything extra.
AppleCare on iPhones and iPads is worth it because it covers two bouts of accidental, and costs significantly less. I personally would take that $350 that I would spend on AppleCare and get over half an iPad, or plan a vacation somewhere (even after spending a relatively small portion of it on insurance).
Of course, this is all my opinion - don't blame me if you don't get it and would need it. But to me, the chances seem extraordinarily slim, especially considering if there are problems affecting every product within a product line, Apple usually will do some kind of replacement plan to prevent bad PR.
So you're basically paying $350 to prevent fringe defects that will probably never occur (especially considering the risk of accidental/theft - which void AppleCare - probably outweigh it).