0
If it were optimized for mobile, maybe the niche would be bigger...
Most time I saw creators like that, are on mobile.
Take a look at this for example:
https://www.assetstore.unity3d.com/en/#!/content/76940
Also the format is to specific, you can use it only in Maya.
OBJ files are more compatible like mp3, you can open it everywhere!
Greetz, viva