Sadly, that's the truth. I have a Mac mini from 2007 that's still going good, but I didn't feel that the 2012 model would be a good replacement when it came out. The 2014 model was a disaster beyond that (down to dual core, no more user upgradable RAM or HDD). Short of a miracle, the Mac Mini is dead or will be updated with something even worse than the outdated and expensive model still on sale.
It honestly makes me wonder if I should stick with Apple. Every product I loved apart from the iPad, iPhone and Macbook Pro has been cancelled or ignored and these 3 remaining products are updated with such small increments that I don't think Apple is leading us into the future of computing.