davedroug i suppose its depends on what music your playing whether you need below 100hz or not and its everybody to there own
I agree with you , I played bass 18 years in a band and we didn’t have all the wonderful facilities of today, my last purchase of pa to suit my solo shows was the Yamaha 2 12 inch subs and 4 12 inch tops 2 front house 2 fold back , the reason I use this combination is it suits the backing tracks music I play with all boxes set to standard settings and a reasonably standard song backing mix the system sounds great in most venues without having to tweak the mixer much at all, I don’t need to roll off the bottom because the subs are 12 1000w each so it all depends on the system you have and as you said the music you play and which venues you perform in mostly, if I was playing with a band and in slightly larger places then I would have 18 subs and 15 tops and a lot more work on the mixer, but for my solo performances I keep it very simple and my PA system of total 6000w does most venues nicely without too much mixer tweaking thanks to Yamaha professional designers that have designed it so the customer doesn’t have to play around too much with the mixer.
It was a tough decision to go with the 12 inch system as I do sound for bands on occasion when they come over from overseas but then I just hire a much larger system and leave my baby at home nice and safe.
Cheers Damir