Isn't it cheaper to buy a biz class ticket instead of UFS?
sfo del round trip is roughly $1000 in economy.
UFS is either 1200 or 1300 per leg (not clear). Lets say 1200.
Round trip is 2400. Plus 1000 = 3400. You can buy a biz class ticket for that amount or within $200 of that.
What am I missing?