[jmciver]

Another data point for the OP (and full disclosure, I also intend to keep my X7 for a while after warranty and I am not a fan of these extended maintenance plans). Using a popular internet discount BMW parts vendor (GetBMWParts.com), the parts for a full X7 brake job (all four corners, new pads & rotors) is $1066. For pads only on all four corners, $350. Note, there are three brake configurations for the X7: 1) M-Sport Brakes, 2) Standard Brakes, and 3) Standard Brakes w/Factory Trailer Hitch (configuration 3 is in the middle cost wise and the numbers above are for configuration 3).

Costs when having the dealer do a full brake job will include labor and a higher dealer cost for parts - which can vary by region. Also, while the X7 is still new so there is little to no data on how long brakes will last, it is probably unlikely that you will need new rotors within the 3yr/36k mile period and most likely won't even need new pads in that period as well (take a look at your vehicle status condition based maintenance screen and see when the computer thinks you will need a brake job for the front or rear).

So, finding a good independent shop with reasonable labor rates (and they do exist) combined with buying your own parts, even genuine BMW parts, may be a better use of your money than the extended maintenance plan. You can save even more money if you can DIY a bit, too. So my recommendation is save your money on the extended maintenance plan and just pay for the maintenance when you need it. Hell, even the wipers on these cars last longer than you may think too....