>>7001157eBay usually has shitty charges which most sellers make back through shipping. Depending on the market you're in, Facebook and Craigslist are usually good.
As for where I've bought my bots, I almost always buy local. I've got two independent shops near me that buy second hand figures, and I just got home from a toy show with a bunch of old stuff. But not everyone has access to those kinds of things.
I'd say eBay is your best option, though I rarely buy from there. What you selling anon?
