Marvel Champions queston VS other LCG's

Hello, I've owned both Lord of the rings and Arkham Horror LCG games. And gave up on them as I've always felt I needed more. LoTR had only 3 quests in the base game, and AH 4 as I remember.

I see MC is great solo, does it provide more replayability with base game only for solo play? I'm only thinking to buy base game.

I love the system, don't like rabbit hole.

Thank you.