If you have a high credit score you can be assured that your mailbox will always be stuffed full of offers for credit cards.
Strangely enough, I just bit on one of those since I was thinking of applying anyway since the cash back stuff fits our spending style. First time in about ten years I've applied for a cc and it was already approved. The credit limit is absurd given our income and other available credit lines - if we ran them all up I doubt we'd live long enough to pay them off (well, DW might) I guess that's what the bank is hoping for.
They're going to be disappointed. We pay them off every month.