no, there's still a reason, I'm fighting it on my 80 pup right now. If you let your skill gap get too high you can hardly connect, at all. No connection=no chance at skill-up. That's why at/near cap is a good thing. Very little is as frustrating as whiffing on EP- when you try to skill (and in my case tank for my auto) on 2/3 swings. .5 skill-ups or not, closing that gap can take forever seemingly. I'm actually avoiding aby invites right now because even with food and atma at level 80 I'm only able to hit normal Aby mobs 1/3 and that usually for 1-20 damage. The same can easily happen to dancer, or anything else for that matter. The only ones with a chance of that never being an issue are thieves, if they rock at Sneak Attack, and Ranger using their Acc ability are almost as good, but that is 1 shot at a time, not exactly ideal for skilling up.
Couple that with getting better drops off higher level prey (generally) and it can be worth it. You need the XP, might as well take the $ in the process. Not to mention it's just a bit more fun if there's a bit of challenge to the game. Otherwise, I hear there's this game called Candyland that might appeal to your tastes more...