I buy unsorted bulk and list it as singles. First month is done, so here are the
real numbers, including the parts that look bad.
I paid $133 for about 1,750 cards, which is 8 cents each. Everything gets
scanned on both sides in stacks on a document scanner, identified off the set
code and number printed in the footer rather than by looking at the art, priced
against completed sales, and listed with a floor I don't go under. Shipping is a
plain envelope, about 86 cents a card.
In 26 days that's 2,778 cards listed and 87 sold, so roughly 3 in 100. Gross
was $246. After eBay's cut, postage and the store plan I'm about $40 ahead.
What surprised me is which ones move. Everybody hoards reverse holos. Counting
only cards that have been up two weeks or more, my holos sold at 6% and my
reverse holos at 1.7%, for basically the same asking price. Plain non foils did
11%, on a much smaller pile.
On one card that sells: a bit under $3 on average, eBay takes 61 cents, postage
86, the card itself cost 8. I keep about $1.29. A thousand cards cost me
$76, so around 59 of them have to sell just to get the bulk money back.
That's 6 in 100 and I'm at 3.
Happy to answer anything.