Spend United Miles Now

United is making the Venezuelan bolívar look like a stable currency.  MileagePlus miles will be worth significantly less on February 1, 2014 if you intend to use them for anything other than coach flights in North America or to Europe.  You can still book flights at the current prices until February 1, but don't wait; availability will deteriorate every day as more and more flights are booked.

I like using United miles for Lufthansa travel