It's a shame that electronics aren't accepted over here, I'd say there'd be some good bargains to pick up if they did. I think most people sell stuff they don't want, or end up putting it down to the recycling centre.
Do you have shops like CEX or Cash Converters who sell consoles and other gadgets? Not that I think it's worth selling to them as they will take a big margin on their sales. Charity shops here seem to have a lot of electricals, but I assume they run some checks on them.
We do, but CEX are a bit expensive when purchashing, but it's kind of worth it due to the warrenty.
I think CEX give more money if you get instore credit, but even then, it wouldn't be a whole lot.
Some people will just want a convenient way to sell stuff and some backup if buying. Trading privately always has some risks.