[He reaches over to give Kitty's arm a light squeeze.]

People are a large part of it. This ship has been a home to me, and it would not feel the same without people I care about on it.

[But it's not quite enough, and he pauses before continuing.]

I have also determined I prefer having enough room to fly, and I would like to stay in one place long enough for it to be familiar. So it would have all three: familiarity, room, people I care about. Having all three of them is a singularly uncommon experience in my life thus far.