I too have submitted changes, some of which I realize now are not practical. We must all remember that these are supposed to be "fun" little games. If you want extreme detail, go get Sim City or Rise of Nations or something along those lines. You'll get a lot more detail, but you'll also pay about 3X as much.
I'm NOT trying to discourage people from making suggestions, but keep them "real" in relation to what the games are supposed to be.