How would you mount your projector? Driling some holes in the walls? Buying some ugly docking stations and again driling the walls or living room ceiling? I came to simple solution by playing with the regular tripod and two monopods:
1. stable.
2. portable.
3. ajustable.
4. durable & resistant even to the golden retriever tail movements 
p.s. In my family there’s no place for TV. And we keep this status for about 3 years.