In the past ten years, the state has built launch faciities on Newfound, Squam & Winnisquam. The facilities include parking for trailers attached to vehicle, double ramps, dock, and toilets. Lake Sunapee is on deck to be next.
Why not on Winnipesaukee? Because of all the town and marina ramps including Ames Farm Inn. Could be that Ames has been the most popular unofficial go-to spot which tipped the scale of decision against creating a Winnipesaukee state launch.
If the State of NH builds a new state launch on Lake Winnipesaukee, it would be nice to see it built in Laconia because Laconia is the only lake town without a town ramp. There's commercial property on Paugus Bay that has nothing to do with 'waterfront' but could be used as a boat launch. Thinking of the vacant Fitzgerald car building, across from McDonald's. Considering the size of the Winnisquam launch,which is very small, the Fitzgerald lot could be big enough for a state launch. A handy spot to daytrip the 32' Baja from your driveway to the lake!