I sell items occasionally on eBay (not electronics, just clothes) and it is a buyer rather than a seller's market over there. Ive never had a scammer but eBay makes you wait a certain number of days until they are sure the package has arrived at the buyers residence and more days to make sure there are no complaints until the money is released by PayPal (for new sellers it used to be something like 21 days, not sure if that's the policy anymore). So if a buyer turns out to be a scammer, they can say they got a box with nothing in it and end up with both your item and the refund.
I would look for a site that offers greater seller protection tbh.