Seems obvious, but I don't think people realize how cheap we can get thinkpads... thinkpads also last a long time, using superior electronics components,hinges and other hardware.  

http://www.extremetech.com/computing/148482-the-true-cost-of-a-raspberry-pi-is-more-than-you-think

If anyone wants to know how to buy thinkpads, I'm willing to sit down with people and find them cheap computers for hacking.

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Cheers,

Rusty Lindgren