I once got gas (in New Jersey - where attendants pump your gas) and the guy was like "OK, you're done. Have a nice day!" I started to drive off... and the pump came with me. The attendant was furious at me, but I made it clear to him because of his signoff that it was his fault. Idiot!
I think colorization works for some films, not for others. When detaching from any nostalgic feelings associated with this Mickey Mouse cartoon, I think it looks better *with* color.
In Party Down's case, Rumson (and Arrested Development's, too), they didn't stop because they wanted to: they got cancelled. More about the cast getting together and having fun/getting closure with the show.
Sorry.