Not sure if Nasa would really be that interested in buying the domain.....I heard the shuttle launch was delayed until monday due to an issue with the tanks or something. Hope it all goes well though, let's not "hope" for a disaster!
I think the domain is nice, but because the actual launch isn't that memorable on the surface I doubt it will hold alot of value. If it was the first mission to mars then it would be a different story, you could collect lots of information/pictures and use it as a resource for school children for their research