I have enough miles for a domestic SkyChoice ticket in coach...
Anyway, my philosophy is to save those miles till when I need them, namely going to sports games at the last minute (I've cashed in to go home for an NFL Playoff game, go to Jacksonville for the ACC Championship game and go to Cleveland for the NCAA Tournament; all three were booked about 3 days before travel); I figure 25,000 miles (all have been SkySavers....then again, Cleveland in the middle of March isn't exactly a hotspot!) is better than spending $800 on a walk-up ticket.