Before I let up allow me to speak out of the other side of my mouth for a moment... ;-)
I have a few pairs of Atomics of roughly the same vintage as yours, and I still ski them, and love doing so. They're modern skis - not old straight skis - and still give a damn good ride. Yes, there are newer designs that typically are wider, have more sidecut, have rockered tips and maybe tails too, and if you wanna explore some of those options by all means do so, and have a good time. But if you just wanna stick with your trusty old Atomics don't let anyone tell you you're somehow wrong or stupid for doing so. A lot of times around here someone comes in and says "my tires are getting a little bald, what should I do?" and they get pointed in the direction of buying a new car (and often a BMW or Audi)! Fine, if that's what you want, but not necessary.
Also, FWIW, if you do demo something radically different than your old Atomics go in planning to give it some time. Things feel different, almost always, at first, and sometimes that equates to bad if you're in a rush to judgment. Take it slow, do some easy stuff, play around a bit to find the feel of the new skis, and then start to form an opinion. You may find you'll adjust after a bit and really love (or not) what you're on.
P.S. Take the above with a big grain of salt. I'm not an expert skier, but I do ski on a lot of different kinds of skis, and IMHO just like people and dogs there's almost always something to love about each and every one, regardless of the age or pedigree. ;-)