If you don't an ambient light screen is great. If you do, you can get a high gain. Personally i didn't want to waste the money and painted my own, after i blacked out i used a white with some of the silvermetallic mixed in, i think i got recipe off AVS. Looked great, so much brighter than my cheapo one i bought.Not right now but I can control the light. Why?
2000+what price are you talking about for expensive? I have a $50 pulldown I got from fleabay and it was decent, but upgraded to Elite Screens Sable Frame B2 from amazon for $200 and it was night and day better, it's also a fixed frame which is so nice if you have the space. I love it.
And it's cheaper than some of the screens, and it's probably real 4k, and you don't have to wait on bulbs to warm up. I've never recommended FP to anyone that doesn't have light controlled room/theater. But some people put up with it.Just buy a 85” TV if you have uncontrollable ambient light. It won’t look washed out and sparkly.