What about equal priced discs and cantis? There are workable cantis for 15 bucks. But Pauls are super easy to adjust and in the same relative price range to BB7s. They are boutique so getting them at a discount is tough, but otherwise the pricing is in the ballpark. I doubt many people here are using caliper brakes in the same price range as the discs that are on MTBs, there are some very fancy caliper brakes if you want them.