I just picked up this game last week and have really enjoyed playing so far. I've gotten a bunch of my friends to start playing using only the core set, and I'm looking forward to picking up the KoTS and PotS expansions to add the other two houses. I have a question for the community about how long your games tend to last; we usually do a 4 player game that ends up taking a few hours. Granted, we've been teaching new players each time, but it seems like our games may be lasting too long and I'm concerned that this might alienate some of my newer players. Any thoughts? Thanks!