(CNN) -- With the iPad 2 going on sale in a week, Apple appears to be working to unload its remaining inventory of the tablet computer's first generation.
A 32GB Wi-Fi model now sells for $499, and the 64GB version is $599. Prices range up to $729 for the 64GB version with Wi-Fi and 3G connectivity.
The new iPads, which will ship on March 11, have the same price structure the current models did -- ranging from $499 to $829.
People who bought an iPad from Apple in the past two weeks can get a $100 refund.
Current iPad owners, looking to unload their current models before they seem dated, flocked to retail websites. A search for "iPad" on eBay Thursday produced more than 57,000 items, although many of those were accessories.
Craigslist's San Francisco site featured almost 800 iPads for sale Thursday, the majority of them listed in the past two days. A few used models were being offered for less than $300.
Gazelle, a website that buys used electronics, was offering $300 for a 16GB Wi-Fi iPad and up to $510 for the 64GB version with Wi-Fi and 3G.