This also goes for bioshock. I have been thinking about mass effect 2 but I have yet to play number 1. I enjoyed KOTOR alot, but I am unsure I will like mass effect as much. So, should I buy the much cheaper mass effect one to see what it's like, or can I be assured that mass effect 2 will be worth it? Or should I not bother at all and just play what I already have?