Well, the Gakken Trojan Horse that I got is definitely only worth sending off for decapping. I threw some batteries in it and it doesn't even power on. I opened it up and the only passives are a transistor, an oscillator, an electrolytic cap, two ceramic caps, and a few resistors, and none are visibly loose or anything, so it seems like about the only thing it's even good for is decapping.
To be fair, it was sold as-is and the auction listing even said that it was untested because the person selling it "didn't have correct batteries" - which I find highly doubtful, but whatever - so I can't really complain.
