Actually, depending on the keyboard sometimes it's easier to desolder and swap in new switches than to take apart each individual switch. The Filcos are easy to desolder and swap.
Well, let's see...
Filco 87 key at $115
100 keyswitches from digikey for $96.25
totaling $211.25 plus shipping
Swap the Filco with a new SMK-88 with blacks and it's still 186.25
Of course, I could attempt it with my current SMK-88 with blues... but with my luck I'd ruin it and be out a nice keyboard.
Deck keyboard with ugly keys at $176
plus maybe a set of key caps that aren't ugly. Or put up with it. Or get a can of krylon.
Bah. I think I'll take the cheap and easy route and keep the keyboard I have. Maybe someday I'll try removing the switches that have suffered from spilled beverages and cleaning or replacing them. WD-40 made it so they aren't gummy, but they don't click and have no tactile feel. Luckily, they're page up, down, and the right arrow. And the help key, but the key cap for that one is sitting in my desk drawer.