The kitchen faucet in my '06 3400RL was leaking pretty badly around the handle and the finish was mostly worn off. There was also no aerator or sprayer so I decided to replace the whole thing.
I bought a Peerless Stainless single-handle faucet with soap dispenser from Lowe's on sale for $138.00, and had to buy a couple 12" supply lines and 1/2" nipples to connect it up. Total cost was just under $150.00.
The hole where the spout goes was too small so I had to drill it larger with a hole saw. The faucet came with a soap dispenser which I hadn't planned on using - but when I found how easy it was to drill into the countertop I went ahead and drilled another hole and installed the soap dispenser.