Do Ebay stores make money selling overpriced cards?

[glchen]

Yea, that 25% would be on top of my costs (purchase of the card + any fees to grade the card if I purchased it raw). It wouldn't include any ebay or paypal fees, which seems from what I read will be ~10% of the item. Therefore, I would theoretically make 15% profit on a card. However, this would only be on cards that I would be able to sell. If I purchased a card at too high a price or if the raws I purchased were fake or of lesser grade that I thought I purchased for, then I would lose money on those cards. So overall, I'd probably wouldn't be making much, and there'd be a pretty good chance for substantial losses since I'm probably already listing the cards at a higher than average price. As you can see, my business skills seem pretty lacking. However, I want to get a feel for what sells first and may adjust things later. Or just go out of business.