Just noticed this today: Use either the Alaska Airlines or Southwest Airlines online shopping portals to place orders at Competitive Cyclist and earn 3 miles per dollar spent. The only worthwhile restriction is "Not eligible on Santa Cruz Nomad bikes & frames." So as long as you can find something you like that isn't a nomad, go ahead and blow $5K on a new bike and get 15K miles on either airline. In some cases that's enough to buy a round trip ticket. I've booked flights on Southwest for as little as 6K points each way.