Yes, well... that is a narrow reason to buy a computer. As I stated before, the iMac is a quality all-in-one computer; whether it is made by Apple, or anyone else, is of little concern to me.
According to your signature, you seem to question the value of Mountain Lion as an operating system (unless, I'm misreading it), as well, do you not?
I always believe that Mac OS X is the reason why people like me buy Apple hardware. Unfortunately the peak of Mac OS X values went dead after Snow Leopard... After my current MBP, I'll have to see what Tim will have to Cook up on the future of Mac OS, that is if the "Mac" moniker still survives...