AA would offer nearly last seat availability for just 50,000 AA miles round trip, per person. (milenomics.com)
But for first class, or if you want to buy a more expensive award with last seat availability, the prices are pretty much the same. (travelcodex.com)
This week we already learned that the combined United - Continental frequent flyer program will have expiring miles and that last seat availability for standard (additional miles) awards would be restricted to elites and credit card holders, plus that cardholders who are elites would be eligible for complimentary upgrades on domestic coach awards. (viewfromthewing.boardingarea.com)