My son and I have a few ladder stands which put the platform from 15-17'. One is a buddy stand.
Like many have said, these are plenty high, especially with surrounding cover.
I can't stand tree stands of any kind on the trunk of a solitary tree; not lock ons, ladders, or climbers. In fact, one of the reason I haven't used my 10-year old Summit climber is because it requires (if used as a climber) a naked tree trunk. I don't feel hidden enough.
Before returning to curves I liked to be about 18-20 feet. Now that I'm shooting curves again I prefer to be about 13-15'.
I too remember the Baker climbing stand days, before the hand-climber was added. You had to hug the tree (red marks on one's chest all season) and shinny up.
I'd have a 20 foot haul line and climb, in the dark until I felt the string pull tight on my bow. It always took a few minutes in the stand, on opening day to get comfortable sticking out on that tree so high.
I wouldn't even consider doing such a thing these days. It seems now that gravity is much more of an adversary than when I was in my teens.
I rarely hunt out of my ladder stands because I don't feel hidden as much as a lock-on in a cedar or among a multiple stemmed or close-growing trees. Also, the ladder is easy to bump with the lower limb as you maneuver for shots.
I dearly love big old eastern red cedars .... so much in fact I've been guilty of putting a stand in them even if sign isn't obvious, hoping for the best.