You are taking this way too seriously. If you race or ski on ice, tuning is important. If you are just cruising around, mashing soft bumps or chasing powder you don't really need much of a tune. I prefer a bit draggy ski in the bumps so I avoid wax. Plastic lasts forever so the bases aren't going to degrade without wax. When I need to race, I will get a nice tune. Until then, I will enjoy skiing. If you enjoy playing with ski tuning, that is an art in itself worthy of your interest. But it won't affect the skis for my crude skiing skills.
Eric
Plastic doesn't last forever. Base burn is real and degrades the base surface creating drag. If you like drag or prefer skis that don't slide reliably and predictably, then continue not to wax. Burrs on edges also create drag and reduce the effectiveness of the edges. Massively sharp edges aren't needed in the Colorado 3D snow I ski, however, the entire mountain is rarely 3D snow. A good edge doesn't inhibit performance in 3D snow yet a dull edge will create issues on hard or icy snow, so a good edge is desirable, for most.
I'll grant you 'to each his own', but one of the posters indicated they are very sensitive to their tunes and even a 'good' tune may not satisfy everyone. I am sensitive to edge and base damage and while most of m skis will behave just fine without mega-sharp edges, I still like my bases smooth and flat and my edges true and burr-free.