Bidding on one 64-gigabyte model reached $10,100 on Tuesday with two days left in the auction. Apple is selling the model for $399 with a two-year contract.
Typical prices are a bit more modest, although still a lot higher than retail. A white 16-gigabyte model sold for $900, which is $250 more than its retail price but $700 more than its price on a two-year contract.
One person was selling a 64-gigabyte model for $1,375, while a pair for 16-gigabyte models attracted dozens of bids and sold for $1,425.
Others, though, aren’t bothering with auctions and instead are simply listing their devices at Buy It Now prices. One person is selling two 16-gigabyte iPhone 5s for $2,500 total. Another seller, meanwhile, has listed two 64-gigabyte iPhone 5s for $3,200.
Many of those purchasing the iPhone 5s on eBay may be from a country where the phone won’t soon be available. Apple began taking pre-orders for U.S. customers last Friday and will begin selling them at retail stories this Friday.