It is not hard to sell on ebay, but be careful! You MUST remember the postage costs and not overcharge your customers. Also, be quick when you ship out. More than a two day delay in shipping and people get a bit cranky.
Quick fast understanding service and freebies are great.
I sent out my money order and it got lost in the mail. The ebayer was so nice and we spoke a couple times on the phone. She even offered to send them to me before she had my check so I would have them for DL. She was great.