I wouldn't say more remote buttons are always positive or user friendly. The OP mentions he doesn't use 90% of them already. Having more "places" to turn things up and down, change phase, crossover points etc also create blind alleys some folks travel down when operating and then get lost-they don't understand why the front end unit doesn't fix things like before because you bypassed that with the remote. These HT processors/receivers/front ends are already incredibly complex. The more buttons in more places definitely makes things more confusing for many, causing more tech support and more manual searching. Especially older folks who don't see well!
Brad