You are free to simply NOT BUY THINGS YOU DO NOT FEEL ARE A GOOD VALUE.  It's a whole lot easier than running around everywhere going "That's a bad deal!  You'd be stupid to buy that!  Don't buy that thing you want for a price you think is fair!  I don't think it's a good deal!"

And, as noted, the FPGAs are actually useful for something after the end of their usefulness with bitcoin.  The ASICs, should something happen to bitcoin, are simply scrap.