VRBO has rental properties for Glen (StoryLand), Bartlett (pretty close) and the general area. Lots of ski condos, townhouses and the like, many for around $100/night during the summer. Sweet.
Despite being in New Hampshire and New Hampshire being a small state, it'll still take almost 3 hours to get there from here (the Whites. They may be short, but no one ever said they were dull. At least, not anyone who got up close and personal with them). But I think that'll be our summer outing this year. No planes. We can bring the groceries with us. Something to amuse the kiddie. Depending on where we stay, access to a swimming pool.