#1
how much better are grover then die cast? how much better is a tonepro Tom bridge then locktune tune o matic bridge? also is it worth it in the long run to get a guitar with better hardware then to replace it later?
#2
Depends what guitar you're looking at. If you're looking at 2 guitars that are identical in every way besides pickups and tuners, then you can compare prices of buying the one with better hardware vs. buying the lesser of the two and upgrading. But a lot of times, the one with better hardware also has better build quality, different wood types, construction, etc. So you really need to your research on the guitars you're looking at when searching for a new one.
MY GEAR:
PRS SE Custom 24
Jackson DKA7
Gibson Explorer
MESA/Boogie Express 5:25
BOSS GT-100

BOSS TU-2
Dunlop Cry Baby Classic
BOSS NS-2
VOX Joe Satriani Ice 9 OD Pedal
VOX Joe Satriani Time Machine Delay Pedal
Ernie Ball Strings
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