Personally, I think I'll be upset when they retire this beautiful craft.
Think about it, how long ago it was designed, yet, it /still/ looks futuristic. Kudos to the designers and engineers. The craft is a veritable beast.
Watch this:
http://www.youtube.com/watch?v=iwfsFtpACFw
Sounds of engine beginning to whir at 3:55. 3:58: "Oh, wow, look at that".
Regards,
Humayun