Maybe its good this way. Some series fall flat as more games are made. Despite what people say about Mass Effect 3's ending. It personally didn't bother me. Was it the best? no, the ending of the first game that I chose was the absolute best. Nothing will ever top that for me. I don't have any emotional investment into these games, but I probably would have been pissed if I did. A lot of people on my facebook feed seem to feel the same. It also could be that MGS2 effect. While the game wasn't bad, people were mad that you weren't Snake anymore, and its regarded as the worst MGS of the series.
If anyone cares to know why I loved my ME1 ending tho