I showed up to the auction at 8am, but soon realized it was going to be an all-day thing and probably wouldn't be to the mini excavators until 2 or 3 in the afternoon. I bailed and went home to spend the day with the family.
I don't know what they ended up selling for, but the concern I had is the same as you...getting parts and/or repairs when something fails.
I already have a full-size mini excavator and several skid steers that i can do pretty much everything I need to. This little guy would mostly have been for fun or for fitting into tight spaces that my bigger mini doesn't fit into or is too big.
If you end up with one, follow up with how you like it. I'd be interested to know what you think.