One of mine got dropped while there was a USB stick inserted and when it landed on the stick the impact cracked the motherboard where the USB slot is attached. Everything works except for the USB slot and the SD card slot. I've got it taken apart and with very little effort I could remove the motherboard.
There's been a few on Ebay but the asking price is very close to what a factory refurbished working unit sells for. It doesn't appear they've adjusted for the pricing of $179 refurbs yet.