I only got round to playing the first one on steam earlier this year and...yeah, based on that I'd say it's worth it. I've read that the gameplay is improved in subsequent games (not that I had any particular problems with it), but that first one is very good at introducing you to a well constructed and pretty huge world. Wasn't 100% on board when I started, by the time I finished it was a challenge to not immediately install the 2nd one! The first one's fairly cheap too, about £8, so you lose little in giving it a go.
9 years