Well, gents, keep in mind that Suzuki doesn't make the braking system stuff.
In fact, on my '06 B12S the brake setup is kind of a parts-bin-special lashup.
The front calipers are made by Tokico with the master cylinder by Nissin and rotors
look like Nissin stuff. The rear setup has a Nissin master cylinder and caliper and the rotor also looks like a Nissin item. All the hoses are by Nichiren as per every Japanese bike ever made with hydraulic brakes.
What this all means is that these are all buyout items for Suzuki, the same way that a lot of items are for every automotive-type manufacturer. In turn, this translates into 3 levels of profits along the way......Nissin/Tokico/Nichiren......Suzuki.......dealer......and let's not forget the shareholders of Nissin, Tokico, Nichiren and Suzuki....and possibly the dealership as well....although most dealers are not listed companies....yet. Throw in the "low volume" and "quality required" adders and it's pretty easy to see why motorcycle parts cost so much. I don't see much to complain about when all is said and done.......
Let's keep in mind that NO motorcycle is a must-have item or, as the squid bike boys say, you gotta pay if you want to play.