
No, it started with Reagan
No, it started with Nixon
No, it started with Prescott Bush
All of history is built on what came before. I think if we really want to get to the root of America’s collapse, we have to look way back. Doing so, I can only conclude that the Agricultural Revolution was a mistake.
Are we counting old-school expansions as DLC? If so, then, aside from the infamous Horse Armor, the Elder Scrolls series seriously raised the bar for what to expect from RPG add-ons. Tribunal and Bloodmoon were massive expansions that set the standard early on.
Knights of the Nine might’ve been a bit weaker, but Shivering Isles is one of the GOAT expansions and is arguably better than the base game.
Skyrim kept the momentum going with Dawnguard and Dragonborn, both of which added tons of new content.
The series is straight-up GOATed when it comes to expansions that are actually expansive: new locations packed with quests, items, monsters, spells, etc. They take already huge games and somehow make them even bigger.