I intend one day to haul out the old TRS-80 Model I and see if it still works. If not, I stand a really good chance of successfully repairing it myself, unlike most electronics released in the last couple of decades. (Of course, it's more likely to work than more recent equipment, if only because it predates the biggest capacitor-quality catastrophes.)
Yes, please do check for dry caps on that old mo-bo before powering it on! Even with the old cap-quality being much better 20+ years ago, it can still be a problem. And little is more disheartening that frying an antique mo-bo that probably would have worked fine with a few new caps on it. I say this as a proud owner of an ancient Kaypro 10 who's had to replace a few of its old caps to keep it humming. Gawd, the thrill of 9" green screen CP/M goodness!