interesting that you say it looks amazing considering most in this thread says 1080p would look bad at that size. What's up with that do you think?
Also Have you had a look at any 4k projectors to compare?
I watched Dune on my 50" tv and all I could think about was how better it would look on a big projector. so i respect your need for size
I understand why people think blowing up a 1080p image to 120" sounds terrible but with a good projector (not some cheap ebay stuff) it still looks great. Projectors give a filmic quality that just feels different to TVs.
I doubt you will find any people who own a good projector with large screen say they prefer watching on a smaller screen. Under 100" I would go TV.
Some games will look better than others depending on there resolution and use of AA. Last of us 2 , demon souls, god of war etc look incredible and its so immersive on a large screen with 5.1 sound or headset.
Movies of course also look amazing as long as they high bitrate, Blu-ray etc. Dune was excellent even for a stream. Garbage in garbage out...
The only games i wouldn't play on it are competitive 1st person shooters.
Projectors do have disadvantages , bulb life and having a light controlled room to get the best out of them being the main two.
If you got the budget and space then for me its a no brainer. If budget is limited , room cant be light controlled (There is screens to help this) and its being used constantly as your main viewing device a TV may be better suited.
Old photo as this was 110" screen before i went 120"