The best advice I received from a sales person representing many brands both new and used was to decide what component was I going to build my system around. I was putting together a system for vinyl. His question was do you want to build it around the source, the amplifier, or speakers. What ever I decided he suggested putting 40+% of the budget into that component then build around that.
since I was after vinyl I built around the turntable/cartridge. My thoughts were if I can’t extract the information nothing down stream will fix that.
Just what I did, but I don’t know shxx.