STL-DEN on UA was oversold a bit and they were glad I volunteered. They were offering $300 and a non-stop STL-LAX on TWA a few hours later. I hung around the counter and they called a couple, giving them my seats. I was all excited when I saw that, thinking about where I can go with the $300 voucher when the agent called me and gave me upgraded seats in F. So close yet so far...