2018 Mini in Apple Refurb Store
I notice today the new Mini is available as a refurb, starting at $849, a $150 discount off the price for a new one.
In the first months after the October launch of the new Mini, the 2014 models were still in the refurb store. You could get a bottom of the line 2014 Mini for $499, which is only for people who can't afford anything better. I have a one, and with 4 GB of RAM and a 500 GB hard drive, it is barely usable with High Sierra.
Some of deals looked really bad, with a much lower spec refurb 2014 costing $1019.