well yes i agree. i just started a sumon necro in diablo 2 and never ever played this class (sorceress fanatic here) and decided to do it without ever looking at a guide for a change.
i like to have to choose between puting a point in summon skeleton or in skeleton mastery every level, sometimes it take me minutes to decide and it's cool.
i know this wont be in diablo3 and it's sad, but i realy hope the runestone will cover this neatly... i realy hope so
But imagine this. Your skeletons and skele mages will still get stronger, but you can DECIDE if you want your skeletons to be able to explode when they die, or always have a cold attack coupled with their regular attack, or they will be able to regen their health a lot faster, or will have two lives each...the possibilities are astounding.
Obviously I made those augments up, but no doubt you see what I am saying.
Personally, I would VERY MUCH prefer to make my Frozen Orb stun people while also getting stronger instead of just making it a little bit strong.