As expected (this come as no surprise to anyone, really) the base fares for the SFO - LAS have all risen at least 10% across the board. With fares spiking on the more popular days, such as Friday for SFO - LAS and Sunday LAS - SFO, I suspect these will be "premium" add ons in perpetuity. I mean, even F9 is asking from $75 - $150 for these high demand dates, and I can't imagine how'd feel if I ever paid that much for a F9 flight.
So, again, unless AS can premium everything or raise the sub price, this appears, at least for the moment, to have been a good bet, at least for my purposes. If anything, given the traffic literally flooding back into Vegas and Oil prices, fares for this route can only go up, at least for this year.