The districts here in Texas are different I guess. Old computers, be it Macs or PCs, are rounded up into pallets and sold through online auctions at http://www.lemonsauctioneers.com/online.html . Basically every Houston district and many other southeast Texas districts participate there. The auctions are similar to eBay except you must have a $100 deposit on file with Lemons Auctions before you can bid. When you win the item, you have to go to the district's warehouse with a truck to collect the pallet(s). The districts understand that the computers depreciate and that they won't get a huge amount for them.

I think this method is stupid though. Instead why don't they sell packages of a CPU, monitor, keyboard, mouse, and speakers, and maybe a printer, directly to the public? It would benefit low income families who could get a very cheap computer; a lot of the PCs they sell off now are actually not bad, like Pentium 4s which would do fine on the internet.

Recently Humble ISD sold off a huge stock of AIO Macs. I placed $5 bids on a bunch of the pallets and won 3 of them.