Stability is a big one, but the feel of the desk itself is also a price point. You're gonna be paying a lot depending on the type of tabletop you get. ($100-1k+ just for the top)
I paid a premium for my home height-adjustable desk because the frame and top are made in America, the veneer is much thicker than competitors, the motors and worm gears are reliable, and the same company makes coordinating office furniture.
The same company sells cheap imported desks too. Since my work area is next to the dining table in my open-plan apartment, I considered the better looks worth the extra money.