Got all 3 Mass Effects because friend was begging me to get it and we'll gameshare. Also got completed my collection of all games by Platinum (played them all, but now I own them all too).
Mass Effect is one of my favorite game... it's so epic (and some character are so good especially Liara & Miranda ^^) and if you take the Extended Cut dlc (for free) you can have an alternative finish on ME3 who is just EPIC.