Worth it...
Addictive, fun, and everything a flash game can be.
I took a rather leisurely route to completion getting all of the upgrades and items at the first ramp then dominating the others in one swoop - so to speak.
The 6000 foot mark was an ENJOYABLE challenge. Not outside the grasp of a person willing to put in the time to work out the intricacies of flight.
Good work. This is due for great praise. Second worthy.