I grew up in NH and now live in CA. We still have family in NH and it's much easier for us to visit them than vice versa, so we go about once a year.

My experience is that it just makes your visits more intentional and your positive feelings about the state even more concentrated. I recently had a kid and am already planning to rotate season trips with her so she can see the foliage up north, go camping at the state parks I used to camp at, and play in the snow.