Not sure if you use disc media, but we noticed 4K discs looked better than burays on a 1080p projector with a new player.

We picked up a panasonic 820 and it was a noticable difference with 4k discs over blurays with an oppo. The 820 even made normal blurays look better than the oppo with the HDR scaler.

Might be an upgrade option ahead of a PJ for you. smile

This hobby is nasty on bank accounts. Hear you there!