I love that 4K77 etc. are available. They allow me to approximate experiencing a Star Wars that I did firsthand.
But when I want to watch the OT, I will usually watch a VHS preservation. The 1992 VHS versions were the first ones that I saw, having rented them from the local home video rental shop. The 1995 Faces versions were the first ones that I owned.
Seeing the fine detail brought out in 4K77 has been a revelation, but for me, on a pre-thematic emotional level, Star Wars should always have a bit of snow and color bleeding.
A fiftieth anniversary screening will be satisfying, for sure, but it would never compare to my seeing Star Wars for the first time while laying on the floor in front of a 20" TV in my childhood home.