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iPad trade-ins: Lock in up to $475 soon

eBay and other sites are encouraging the recycling of old iPads by offering some extra cash, but not for long.

eBay's willing to help finance your new iPad purchase. Screenshot by Eric Mack/CNET

Predictably, Apple's new iPad has spurred a rush to trade in earlier iterations of the world's most popular slate, and a few sites are even offering extra bucks to encourage the onslaught--at least for the next few days.

The best deal looks to be from eBay's Instant Sale site, which will allow anyone to "lock in" a price of as high as $475 for an old iPad in working condition (that number is for an 64GB iPad 2 with Wi-Fi and 3G) through Saturday.

Instant Sale isn't just encouraging iPad trade-ins, it's also offering extra dough for other tablets like the Motorola Xoom and Samsung Galaxy Tab. Here's the breakdown on what eBay will fork over for various working tablets if you lock-in your trade by tomorrow:

iPad 2 64GB Wi-Fi + 3G (AT&T) -- $475.00
iPad 2 32GB Wi-Fi + 3G (AT&T) -- $380.00
iPad 2 16GB -- $290
iPad 1 16GB -- $200
Motorola Xoom 32 GB Wi-Fi + 3G/4G -- $240
Samsung Galaxy Tab 10.1 32GB 4G -- $225

Yesterday, meanwhile, trade-in site NextWorth was reporting that trading values were holding steady after the official unveiling of the new iPad. There, the same top-of-the-line 64GB iPad 2 with 3G was fetching $387, the same amount as before the Apple iPad media event.

For more on why these services are so willing to fork over some green for old devices, be sure to check out my colleague Josh Lowensohn's piece that lays out the process and numbers behind redistribution of used gadget wealth.