As long as owner likes it, what's it matter?
A copper kitchen faucet offers more fresh water compared to the stainless steel faucet. The copper kitchen faucet also has more powerful water energy and valves.
The most expensive Moen stainless steel kitchen faucet is the MOEN Wall Mounted Portiller in Oil Rubbed Bronze - Model #S664ORB. It is listed at HomeDepot to be 607.20USD
Stores that sell an oil rubbed bronze kitchen faucet are Lowes, Home Depot, Amazon, Overstock, Target, Moah, Delta, Faucet- Warehouse, Sears, and Kohler.
You can buy a bronze faucet for your kitchen at many different places especially at home improvement stores. Some stores such as Lowes, Home Depot, Walmart, Target, Amazon and ebay.
One can purchase a copper kitchen faucet from: Betta Living, Overstock, eBay, Amazon, Wayfair, Aliexpress, DH Gate, DX, Dino Direct, Screw Fix, eBlowouts, Ultimate Kitchen Store.
Bronze kitchen faucets can be purchased at the national retailer Home Depot. They can also be purchased online from the web sites Amazon and Faucet Depot.
Stainless steel
American Standard Faucet offers a variety of finishes for all types of faucets such as blackened bronze, oil rubbed bronze, polished brass, satin nickel, and traditional stainless steel.
Grohe kitchen faucets are made of the highest quality stainless steel in order to provide the best water service to your faucet. There are various types, but all are highly varnished.
No, it's just a matter for preference for looks. Although it is more expensive.
Is spot resistant kitchen faucet necessary? Does the spot resistant coating wear off over time?
If you have bubbles coming out of your kitchen faucet, you have a venting problem. It has nothing to do with soap in your faucet.