Any bonus material or features on American pie you can toss at me, I'm gonna definitely watch and most likely enjoy. I can't get enough. There is such a large group of talented people at work here... casts and crew. basically if you went as far as to rent or buy the DVD, why not watch the features.
And for the question in the previous comment...try checking the different cast and crew DVD commentary for those scenes, they might be able to shed some light onto where the wedding scenes were shot. (That was quite a nice building in the movie)
10/10