An acoustic piano is a very large acoustic-mechanical device that at all times , when being played, has notes, harmonics, sub-harmonics, sympathetic vibrations, and pure mechanical noises emanating from it in all directions at once, is loud enough to excite any room nodes there might be present, has enough bass response to build up standing waves in untreated areas, and thats just the good stuff. It also demonstrates an entirely different set of parameters when the top is in each relative position including half open, open and removed completely. It requires some heighth to the area it sits in and moving it around changes everything again.
BUT. If you're going to build out your room, and you provide a specific area for whatever certain piano you are going to be using....and make no mistake they are every one of them as different as acoustic guitars... AND you have a decent piano thats kept in condition and tune, it will pay for its spot in your studio.
You will have to devote a budget to this specifically and you'll have to learn to mic it with whatever mics the piano likes.
Since you're asking, perhaps you are a piano player and you can relate to what I'm saying.
Piano players, once they find a studio with a piano they like, and one thats kept up correctly and is properly mic'd , will continue to use that as their recorded piano sounds.
There have been famous pianos throughout recorded music history that are as infamous to that genre as the room itself has been to all other aspects of record making.
Having a dedicated acoustic piano space can be a very good and lucrative endeavor. But it has to be done right.