Well... When I only had my Custom 24 with it's ***y stock X2Ns pups and braindead treble bleed, I never used neither the tones nor the volumes pots. But I did use the other controls (pup selector and serie/parallel switch mainly) depending on the song and amp (used to play on whatever amp was available by that time, only got me a half-decent one a few month before the band split and I stopped playing guitar for almost 15 years...).
Now I have good pups and a somehow better amp, I find find myself using more and more the volume pot on the Custom 24 (humbuckers). Since I have a Tele, I start using the tone pot quite a lot too. And when playing my other (strat-like) Vox, I do for sure use the switch quite a few times in a song.
I guess that yes, it first has to do with better gear that react more and more appropriately to these controls. But it probably also has to do with me being a little less of a motorhead/speed-freak than I used to be :mrgreen: