It’s funny, recently I found an old SM57 that had been kicking around in my mic bag for the better part of a decade that needed some minor repairs. After fixing it, it made me remember how much I like them! There are some truly amazing mics in this thread, but if I think about my old life when I worked in studios we sure used a lot of 57s.
I had the great honor to have several mics modified by Michael Joly of Oktavamod fame (now defunct). They are my pride and joy, although they were all sub $200 mics with (if I remember correctly) sub $200 mods done to them. I have two of his LDC capsules and a pair of his SDC capsules that are KM84ish that are doing duty as our “Zoom mics” for our permanent COVID video conference system - which is probably a little insulting to them but I also suspect they’re happy to have a steady stream of phantom.
I don’t know what the MXL mic mod scene looks like these days but I hope there are people out there like Michael Joly who are helping people add special mics to their roster when the mid-range mic market can be kind of a wash. Or maybe the mid-range is better now! I hope so.