Any idea what could cause this besides rotten luck?

Went through 2 Linksys BFR41s and a cheapo CompUSA model. I would like to pick up a nice commercial-grade router, but I'm afraid I might toast that as well...

Only connected two computers to the router (dev box and web server) and occasionally my laptop through a USB adapter. The router(s) always sits in a cool, dry corner of the room with no direct sunlight and I can't see why they keep dying on me. Any hardware gurus out there know what could be wrong?