Also they're cool

...default, manageable expected difficulty of the game. Literally, a good long lasting rpg thrives off expression and challenge runs that entice people either to bring its limits to the system for the first time or to grind out an absolutely ridiculous boss kill for content

To clarify more: My bias does show through here but I genuinely think it doesn't even apply only to RPGs. Only the most tightly, intentionally writ story based games where gameplay isn't in the top 5 priorities have an excuse, you just need in some form a place for people to show off past the...