I wrote before last season, fully expecting the O's to be competitive and in the playoff race all season, that if they didn't get to 2 million fans I had long-term reservations if the fans would ever come back. They got to 1.9+, so that was close enough to assuage my concerns.
I fully expect them to get to 2.5 this year, or very close, which would give them the highest attendance since the Nats came to town. 2.5 gets them to about middle of the pack ML-wise.
If they can have long-term sustained success, I believe they could consistently draw 3 million a year, which would put them top 10 in the league.
That's what Rubenstein should be shooting for, imo.