The good ones are two bucks a piece, but the answer is still that there's nothing exotic on that circuit board, the tube is probably made by a robot, and the whole shebang is assembled in China for under $1/hr.
As far as recycling or repairing them, when they're $2/ea, most people don't bother. I say just turn them in at Home Depot, send them off to the hazardous waste dump and bury them for 100 years until we have the technology to separate the 5mg of Hg from the copper or plastic future generations might want to extract from our old trash.
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