The fact that I don't feel I need to play constantly.

If I was decked out in upgraded lore, I'd probably be settled for all content I do in the next two patches without a single upgrade. The highest iLvL requirement for me right now is i205, since I don't do EX nor Savage. That's not even fully upgraded eso. Very easy to keep up, so I can devote my time to whatever I feel like - alting, on rare occasions crafting, recently PvP a lot, after a new patch hits usually getting the newest glam items, sometimes playing other games.

It's a solid ground base, but I'd probably be burned out from it if it was the "only" thing I ever play.