Fun fact: The scene in Star Trek: Generations of (spoilers follow)
the saucer section crash-landing on a planet was directly inspired by a section of the TNG technical manual which explained how the saucer section could make a controlled landing on a planet in an emergency situation.
I don't think I'd buy a used one, anyway; this manual being available is nice but can you get the parts? I don't even want to think about the tax and license issues...
The warp drive on these tend to run into this issue where faster than speed of light travel becomes possible leading to all sorts of catastrophic failure events in the known universe. I'd get the slower model.
https://en.wikipedia.org/wiki/USS_Enterprise_(CVN-65)
TIL that CVN-65 was the second aircraft carrier of its name, and there will be a third in 2028.
The first: https://en.wikipedia.org/wiki/USS_Enterprise_(CV-6)
The future third: https://en.wikipedia.org/wiki/USS_Enterprise_(CVN-80)