FWIW, I charge $10 CAD/club - going rate for my area. This is roughly $8 USD, and around 5 British pounds.

It could be more, it could be less. BH may (much like Callaway) require that you send them back to them for bending (although IMO it's not necessary, but if they break it, it's much easier/cheaper for them to fix!)

The downside to sending them away is that you'll still have to hit them all off a lie board to see how you're doing.