I think that one of the major factors in the iMac selling well is that there is no cheaper box-only OS X offering* to canabalise it's sales. *Excluding the min

I think that one of the major factors in the iMac selling well is that there is no cheaper box-only OS X offering* to canabalise it's sales. *Excluding the mini, which is too far below to really be a direct iMac competitor.