Why is the Grohe soap dispenser so expensive? I was surprised that the soap dispenser was almost half the price of the Grohe Concetto kitchen faucet we planned on purchasing. Is there a soap dispenser that matches the Grohe stainless that is less expensive? Also, I am open to suggestions on kitchen faucets. We would like a two spray function where the button does not need to be held down to use the spray function.

http://m.homedepot.com/p/GROHE-Soap-and-Lotion-Dispenser-in-Stainless-Steel-28857SD0/100008168