Thanks for posting. I've been trying to get rid of my United miles for about 10 years. For the super saver awards they always want to route me through Denver or Chicago or Dulles, and that's usually way out of my way.
I've been really good about not buying stuff on Amazon lately. But the need still comes up.
Any downsides? I'd be cashing out about 20k miles. Not enough for a super saver RT anyway.