I've wanted to play SimCity 2000 on the Amiga. I enjoyed SimCity, then found the SNES version which was an absolute thrill (well, if you're into that kind of thing.) I find that I just don't have the time to sit in front of a computer long enough to get really involved in some of the games I enjoy, so I managed to find a J2ME version of SimCity and play on my phone from time-to-time.
But, to answer your question, I believe there actually IS a goal to SimCity. Ultimately you just have to run a happy and prosperous city. I love the game, and have managed to do very well without the FUND cheat and without jacking up taxes at the last minute before the end of the year, then lowering them right afterward. Though some games do better than others, and I often find myself getting frustrated with having numerous vacant industrial lots when the demand for industrial is very high (for example, though it happens sometimes with residential and commercial, too.)