Earlier quoted context omitted.
Except in this case we're talking about SF/LA, which is only an hour-long flight. I do this flight every other month or so and it's a breeze. You leave work a bit early on Friday, get to the airport in about an hour, board the plane, they serve you a drink, and the captain tells you to fasten your seatbelt because we're descending. It's 1 hour to the airport, 45 minutes through security, 1 hour in the air, and anothe…
Imagine that you aren't staying at a friend's house, but rather at a hotel or AirBnB. Avoiding paying for one extra night instantly saves you money. And if you don't expect to do much the night you arrive anyway, there's no real cost (plus you don't have to leave work early, which may be advantageous).
And like dopeboy pointed out, if this was $100 RT, it would appeal to price sensitive people. And regardless of how comfortable they make it, for many of us in the States, it's still an 8-hour bus ride.