Apple today began selling refurbished M2 Pro Mac mini models in its online store in the United States, offering the latest high-end version of the desktop machine at a discounted price for the first time. Refurbished M2 Pro Mac mini models are priced starting at $1,099 for the entry-level version with a 10-core CPU, 16-core GPU, 16GB RAM, and 512GB SSD. That's a $200 discount off of the original $1,299 price tag for that machine. Apple is selling a range of Mac mini models with various RAM, Ethernet, and SSD upgrades, both with the M2 chip and with the M2 Pro chip. Standard M2 Mac mini models were added to the refurbished store earlier this week, but the M2 Pro…