Had a plumber look at the leak in my bathroom faucet. Seems the fixtures are from the 50's so they don't make new cartridges for them, and they can't be replaced reasonably because the spacing of the holes in the sink is too wide, and the sink can't be replaced easily because they don't make them in 21"x22" anymore, so I'm looking at replacing the whole cabinet.
I'd love to think of it as a design opportunity, but I wasn't ready to tear this bathroom apart yet.