Having flown Radio Control for 30 years, I'm still amazed at what some people can create.
The rusjet is probably close to a $50,000 airplane, it's always fun to see the large smoking hole in the ground when it goes in, and it will go in at some point.
Here's another high dollar toy,
http://www.youtube.com/watch?feature=player_embedded&v=HH0q4OYYHl8