Like most have said I think 6 rod/reel setups will suit most of everyones needs. I think you will find that the real issue with getting the proper setup is line preference. Sometimes I need mono...sometimes fluorocarbon....sometimes braid, it really depends on the situation. For instance, I have three or 4 texas rigs ret up at all times: 65 lb braid, 20 lb fluoro, 17 lb fluoro, etc. Yes I could get by with 1 rod rigged with 20lb fluorocarbon but it is not always ideal for each situation. Maybe you could just have a few reels rigged up with different lines to swap out while on the water, but if you are a tournament fisherman every cast counts and that would surely waste valuable time.