14 year 1K here, nine of those SFO based and the last five here in DEN.
This year I have cut WAY back on UA flying. How far back? My spend with UA this year has been $1400 and I have about 14,000 PQM. I'm nearing 2MM and will make the effort to book UA on long hauls over *A partners to get myself over the line, but then I think it'll be less and less. I will book whoever makes the most sense for a route, given schedule, equipment and price all coming into consideration. I don't book the cheapest, I book what works for me, since I value my time much more than some do.