I played erepublik before, but it got kind of boring for me because they made war too accesible and therefore it was commonplace. Then it was just monotony...
But! I found a similar, much much smaller game that is more community-based. It's only got 100 or so active players, but I played it back when there were 1000-ish actives, and it was pretty interesting. It's called "Sim Republic". I'll create a thread about it.
I checked out erepublik awhile back, but I agree with you about the monotony. I really like OSGs in general though so right now I've been playing Lord of Ultima.