Hey, just a quick question that popped into my mind.

Whenever I go to look at guitars (just to admire them, not to buy any, since I can't afford another guitar right now, and don't really need another one at the moment), I keep seeing the stores refer to them by certain "types", like Strat, Les Paul, SG or Flying V, based on the guitar's body-shape, but is there any actual difference between a Strat, Les Paul and an SG? Or is it merely cosmetic? As far as I know, the sound depends on the strings and pick-ups, not the amount of wood in the body...