When it comes to PJ, BOTH black levels/contrast AND color-brightness are the 2 salient factors - a lot more significant and important than whether the resolution is 4K vs 4K-eShift vs 8K-eShift. This is even more important when we use big screens above 120” because bigger screens require a lot more lumens.
Try to find someone with one of the new Epson EB-PU1006W 6,000-Lumen 4K (eShift) HDR Laser PJ. The 7,000, 8,000 and 10,000-lumen models aren’t out yet, but should be out hopefully by summer.
I have the EB-PU1006W and I used to own the JVC NX5. I have friends who own the NX7 and NX9.
All these other PJ look very DIM/DARK compared to the EB-PU1006W. I think once you’ve witness these high-lumen Epson 4K Laser PJ, you will never want anything less bright.
I am already dreaming about the Epson 8,000-lumen PJ.