I guess it really depends on how tight money is for you.
For me, it would be worth the extra hundred bucks because if there is a problem I could walk into the store and raise hell face to face with someone. And hopefully, the B&M store could schedule a pick-up of the bad set and delivery of a replacement set within a few days.
With an Internet store, you're usually at the mercy of when the trucking company will pick up the defective set after you've convinced the dealer that the defect of the set was, indeed, not our fault. That's not to say all Internet dealers can be difficult to deal with if there's a problem. Several sponsors here have excellent reputations and have gone the extra mile to insure customer satisfaction even going so far as sending out a replacement set before picking up the defective set.
With a B&M store you have a little more convenient way of dealing with a company, and personally I don't think that $100 more dollars on a deal is bad at all. In fact, I think that's pretty damn good.