no matter what it is you decide to sell - it's all about making money!
BUY LOW - SELL HIGH
It don't matter what it is, where you get it - that rule applies!
I will sell anything if I know for sure I can sell it fast and for at least $10 more then I paid - that's about $8 after all fees.
REMEMBER you got to love what you do - which is why some say sell what you like or have a passion for - I don't, heck I knew nothing about what I sell before I started.