HTPCs are a good idea. Yeah you can stream and watch blu rays from cheap units, but an HTPC has a lot more versatility, you can listen to music with any software player, you can watch any of the video websites like youtube, google video, vimeo, etc, you can play games, you can go shopping, and so on. Sometimes when friends are around and we don't have time for a full movie we just fire up the projector and HTPC watch some amusing youtube videos like silly animal stuff, crazy stunts, clips from stand up comady and comedy shows like SNL and the Daily Show, and so on. If you are only ever planning on watching blu-rays and streaming movies on your home theater, then yeah there is no point in putting together an HTPC, but over here we actually ended up using the home theater a lot more for other stuff than for movies.