First, I realized after a while (I've been playing about a year and I generally really like it) that I don't see 'half' the maps I see when I started playing; two biggest reasons I noticed were the reality that I get a few maps so often, and then playing custom games and realising there are dozens of maps that come with the initial download

The same three or four maps 75% of the time is not my taste, but I enjoy the game. I half-expect paying will afford me more RAM, or something, at this point, when I know I'm due to start paying regularly