It would still sting pretty badly if you wanted to replace any nontrivial number of them. My impression (correct me if I’m wrong, though I’ll probably regret the temptation of saying that) is that the current zOMG-serious mechanical clickmonster is a reproduction Model F(yes, ‘Model M’ it is you who are the chintzy cost-reduced version…) which will run you basically $400. You can spend more; but only on freaky ergo keyboards sold on the “y’know what’s really expensive? Carpal tunnel surgery.” basis; or astonishing-Japanese-wood-artisanship-actually-bolted-to-a-fairly-shoddy-keyboard-also-why-would-you-replace-those-keycaps?