There are fewer typewriter shops today than there were last week. There will probably be fewer tomorrow.
--But the ones that are left are generally run by men (and women) who wouldn't choose anything else. For instance, Cambridge Typewriter in Boston, recently visited by Marko of The Munchkin Wrangler. It looks like a wonderful place! (And the owner has a blog, too).
When you find a typewriter shop, don't keep it a secret; we need to make sure they've got plenty of work, so they'll still be around when our machines need attention.