I would look for a faucet that has magnets to hold the pull-down securely in place when stowed. I didn't spring for that feature when I replaced my kitchen faucet and the pull-out part didn't stow as securely over time. I paid <$150 for the faucet, so better quality non-magnetic faucets might be better.

This one, for example, advertises good retraction. It also has a pause feature on the pull-down, so if you've not right by the sink, you can stop the flow of water easily.