I own both a 65" C7 and a JVC RS400 projecting to a 150" screen. The oled has better image quality and is much more versatile. Still the sheer size the 150" is great for parties.
If you have a lot of room and people coming over the projector could be great. I don't use mine often and part of me wants to sell everything and just got for a 77" OLED.
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JVC RS400, Denon X6300H, Klipsch RP-280F x 2, RP-450C, RB-51 II x 2, RS-42 II x 2, RB-41 II x 2, R-150M in 7.1.4, 180" Painted wall
LG 65C7, Denon X4300H, Klipsch RF-26 x 2, RC-52 II, Onkyo speakers in 5.1.4 setup
Samsung 55Q8FN, Klipsch 2.1 Certified THX speakers