If you plan on sleeping on board a lot (which it sounds like you do) a comfortable mattress is good to have. We sleep on board every weekend and my wife's wish list for this year is a high quality innerspring mattress.
A well equipped and functioning galley is another plus.
Remember a well feed crew is a happy crew and nothing beats a nice meal on board.>>
Courtney is My Hero
If a man is to be obsessed by something, I suppose a boat is as good as anything, perhaps a bit better than most - E.B. White