The future is really amazing.
It was raining in NYC in mid october (screw that) and I REALLY wanted a steak. Seeing as how a good, high quality grass fed steak can end up in the $100 range in NYC, I thought
"I wonder how much it would cost to go to Buenos Aires tonight?"
I pulled up aa.com and checked the Award Reservations---it was only 40,000 ffmiles + $42.40. For a same day reservation.
Since I run a site all about how to get unlimited free airline miles, I had several million--so the total real cost to me (to get to Buenos Aires) was $42.40. Four hours later I was boarding a plane, and 13 hours later I was eating the best steak known to mankind.
Definitely worth it :)