There is a big communal aspect that comes with physical work that you don't get in customer services/office/webstore, and it does make a kinda 'bond'. While I do agree that in perfect utopia-land, it would be good for everything to be automated, we're quite far from that, and I see levelling the economic divide a more important goal at this time. Only when we've made everybody equal, merged the working and middle classes and removed the upper/upper-middle classes will we have a platform to start making such changes.
There's a difference between mental stimulation and intillectual stimulation. Watching WWE is hardely intillectual, but there is a lot to concentrate on, from the colours the noise and the movements, the constant barrage of media, then the adverts which contain all of that in 30 second doses. People have become overly reliant on constant streams of mental stimulation thanks to TV, but it's shit you don't have to think about so it's not intillectual stimulation.