I am always sad to leave my current home even when I'm about to move somewhere better. I start think of the memmmmorrriieeesss!
I almost backed out of moving to this place because I started thinking how much I loved our little apartment, how it was the first place we lived together, the place we lived when we got married, yadda yadda... but after we moved, I never looked back.
Heh, DS is still talking about how much he misses our old house. The one he lived in from the time he was 1 year to 2.5 years old. Big memories there, apparently.