I started a "permanent" tree stand program last summer. The goal is to build 6 stands on our property using the "hub and spoke" theory. The stands are the hubs and I used a chainsaw to cut shooting lanes as the spokes. All the stands are built with good lumber and 3 inch lag bolts. This summer I plan on building stands 3 and 4. Because we built stands 1 and 2 last summer....all we need to do is trim up the shooting lanes and stands 1 and 2 will be good to go.
As others have mentioned, permanent stands keep me quieter going in and out of the woods and the animals get acclimated! I also have a 12 year old son and comfort is a big deal in keeping him engaged.