I purchased the JVC NX5 from somebody around here on this thread
I will say that to me it was a no brainer of a purchase. I went from 1080p to 4k. So big upgrade in overall picture quality. I'm loving every minute of it. Movies look amazing. TV shows and streaming look even better. I went with a 4k projector before I even own a 4k TV. Haha. I will be investing in a new 4k TV later this year.
If you already have a great e-shift projector the improvements won't be as significant as going from 1080p to 4k. Those e-shifts are getting really, really good.
I think think the native 4k projector market is getting better, price wise. They are coming down slowly. Covid didn't help things, but I believe in a few years we'll get native 4k's starting at $4k. Which I don't think is a bad price at all. Personally, when you start paying over $10k for a projector the ROI starts to diminish. You are paying thousands for Lumens when everything else is basically the same. Then it's just brand name you're paying for.
For me I love a great picture. I also really love sound. I'm willing to spend money on both to get the quality I'm looking for. But I'm not willing to break the bank for it. Everyone has their price point, mine probably is a little higher than others (on this site) but if you check out other forums, my price point looks like small beans. Some people are willing to spend to the nines on what they consider the best of the best. It's technology, I would never spend to the nines on video technology. Not when it's changing every couple of years.
Nice thing on here are guys like Acu have already purchased all the big name brand stuff and tested it. Can give real world feedback. That's nice to have when trying to make a decision on certain audio/visual products.