If you really want to reconsider a Mac mini as your desktop Mac, Marco Arment has a good argument.
I Can’t Believe The Mac Mini Is This Awesome, I Can’t Even Say “Again” Because It Never Was
With Apple’s track record on the Mac Mini, it may never be updated after this. This is either the first in a series of regular updates with which Apple proves that they care about the Mac Mini again, or it’s the last Mac Mini that will ever exist and we’ll all be hoarding them in a few years. We can’t know yet.
I have a PowerPC Mac mini that’s been running continuously since 2008.