The eventual buyer ended up coming from MicroAcquire, but I'd listed on every marketplace I could find at the time (remember, I wasn't actually interested in selling, just wanted to see what the price would be).

I found out about Microns after I was already late into the process with the eventual purchaser, but it seemed like I might have gotten a higher price there had I posted there originally.

No complaints. The marketplaces serve their purpose.