Let alone three-phase power on FRC robots, I just want [480v] three-phase power in my house!
There are tons of used (still in good condition) three-phase Bridgeport manual milling machines on eBay all the time within driving distance that are selling for $2k-$5k. Some even come with DROs! Who wouldn't want a full size manual mill at their house?
But the electric companies are like you're residential, grumble, grumble, single-phase 240v only, grumble, grumble, just use a rotary phase-converter, grumble, grumble.