I don't care. I'll never buy another all-in-one not upgradeable Mac. My iMac served my well for about 2.5 years. Now it's being sold because I cannot upgrade the processor to keep up with new software. In the next few years, I can upgrade my G4 if necessary.
You have to think long-term. Yeah, they're probably comparable today, but this is an investment, not a beauty contest.