In my personal situation, this isn't feasible, because I have a very hard time sitting in chairs where I cannot plant my feet firmly on the ground in front of me. I can only dangle my feet, or plant them underneath me, for a few minutes. After that, my back starts to hurt terribly bad, and stays that way for a while.

I wish the solution was that simple for me. If I were the type of person it would work for, I would definitely go the stool/highchair route over an expensive adjustable desk.