It looks dusty and there are some hairs or scratches on it. It was listed for $450 for some time and no takers I guess so it's listed for $350 now. I have seen other M1 minis offered at $450 and they sold quickly but this model is in a rural area. It's 30 miles from me and I don't know if it's worth the drive. If it were a 16 GB model and $350 off MSRP, I'd jump at it. There is a 16 GB model that's $200 off MSRP but it's too far. The 16 GB models don't clear at $150 off because a refurb is $140 to $170 off. The 16 GB models that are $200 off clear quickly in my area.

M1 Mac mini - computers - by owner - electronics sale
M1 Mac mini 256 GB SSD 8 GB RAM
boston.craigslist.org