Fair point. It does make sense if you really need to upgrade a very dated machine. However, I am assuming since the Macbooks are rumored to get ARM as early as

Fair point. It does make sense if you really need to upgrade a very dated machine. However, I am assuming since the Macbooks are rumored to get ARM as early as late this year, it is likely iMac would follow next year too. The Developer Transition Kit has a Mac Mini with ARM already.