A big problem with casual selling on ebay is you don't know what you don't know until you've already been screwed. I sold some iTunes gift cards and provided the redemption code from the card after I received payment. We both left positive feedback for each other (he already had 18 feedback). A month or so later, the buyer put a chargeback on their credit card, got their money back from paypal, and I had no recourse.…
If you ever launch it, let me know and I will do my utmost to promote it. If you'd launched already I would have happily sold my iPhone through you. There's really no way you could have provided a worse experience unless you actively tried.
Oddly enough, that's been tried at least once:
https://www.nytimes.com/2010/11/28/business/28borker.html?pa...