Yeah, sure do. Nintendo continues to used the same old characters over and over and over again. Almost all of them go back to their first system. Ever wonder why they slap Mario is every game they can? Nintendo doesn't take much risk with games like Infamous. There is always more risk in starting something new which is why we have 14 Final Fantasy series (including X-2). Will there ever be a final Final Fantasy?
Gross oversimplification taken to an art form, to the degree that you're suggesting there's no possibility of sustained IPs going stale (this is not the case).
Nintendo doesn't whine about the second-hand market because attacking te second-hand market wouldn't fix any problems the company has.