In this context, ya gotta keep in mind that the overwhelming majority of people playing out, namely cover guys, have taken a ballpark approach to their tones. Tribute guys generally take it a step further, but in all my years of going to see bands or playing in them, ballpark was the overwhelming average. I still can't think of any bands I've gone to see where the guitarist was using a modeler and going for as close as possible tones. So that's why you're seeing people question the need for that many presets.
Also, you're using one preset per sound. I'm curious, how did you find that was the best approach? I'd assume the seamless changing between scenes/channels would be enough of a selling point.
All my presets are dependent on the amp. The effects are pretty much the same unless I'm doing something unusual. I just want different amps to choose from. If I had to play a cover gig now, it'd be one preset maybe 4-5 different scenes. I'm definitely a ballpark kinda dude.