It's too damn hot at work and I'm too tired to argue this, but I think there's a difference between what you guys are describing as syndication and the syndication that happens after a show hits 100 episodes. Universal produces House, which also owns USA, so House airs there and the Fox afilliates without a problem. I was thinking of the kind of syndication that would happen when House is sold to another network besides those two for a lot of money, which doesn't usually happen after 100 episodes. (And, of course, there are exceptions.)
As for House on DVD, this is going to sound really trite, but the formula is one of the reasons I like watching the show on DVD -- I like being able to watch a bunch of episodes while I'm doing other things. (It's why I watched Law & Order SVU a ton when it was on USA.)
The show is pretty forumulaic, true, but I think there have been enough arcs in its history to keep the show relatively engaging -- and really, I'd just like to have it on DVD for Laurie's performance. It's not "the best show on TV," but it can be very good.