Indeed the height is in my view one of the most important aspects but I would consider other points as you said: the stability that you mentioned, the beauty (aesthetics can be a concern for some) and the coupling/decoupling question.
The two first speak for themselves as for the last point...
Disclaimer: I work at Synthizer but for such height, some clamp speaker stands might be the best solution rather than the "u shaped" ones.
https://synthizer.com/product/the-ts-1-stands/