Final Solution :
If you're still charging $250 per hour, have superstar talent in, and bought a dozen km84's while they were "old used mics" at $200 a pop, then yes, by all means use them and bill the client if they trash one.
If you're charging $40 per hour, have a bunch of knuckleheads as clients, and bought 2 KM84's with your kids college fund when they were already $1000 + per mic, then no, don't put them on snare.
Now, wasn't that easy?
