On the other hand, if the costs in hardware, skill investments, and essence were all small in order to hack at max capability, there'd be no place for a decker archetype. Or put another way: it'd allow a dilettante to be in par with a specialist. That's no good.
Ok, so being a first rate decker costs significant essence. To me, that means Sammies, riggers, adepts, and mages can't hack as well as a decker. Again: that's a good thing in my book.