Fallout Shelter - Have been plating this for days

Fallout Shelter is at its best early on: as soon as fledgling vault is barely able to scrape by, and every raider strike has the possible to overthrow your weak society. Once your vault is properly established, all fear of losing, and therefore the fun, dies out. Combine this with a lack of compelling longterm objectives, and also you have an encounter that is fun to get a couple of days, but lacks long-term appeal.