Firmware Upgrades Creating Doorstops?

Michael Droettboom asks: "I recently purchased a Linksys WMLS11B. Nice enough unit for the money. One gotcha, though: when upgrading the firmware (past its refundable date where I bought it), my machine crashed, turning the WMLS11B into a doorstop along with it. Linksys has offered to replace the unit, but I don't want it if the box is so easily corrupted. I have always been on a strict policy of updating firmware on all my devices, but was wondering if anyone else has had experience with devices so broken as to not recover from a broken upgrade?"