Why do they bother to sell x box x on ebay?

So let us say one sells for £700 how much do they make from it in profits?

By the time you have taken off post costs what would that be £20-30 for tracked and insurance?

EBay fees what would that be on on a £700 item does any one know? £80 £90 £100+ fees?

Then they have the PayPal fee how much is that off £700? £10 £15?

Then have to take it to the post place and the risk of anything going wrong? They make hardly anything off it right?

CEX offer £100 in cash profit?

So why bother? Any one know how much do they make from it in profits - all the fees?