I am wanting to install wall mounted sink faucets. I have a couple of questions.
1 - do I still run a shutoff valve under the sink and then feed the pipe back into the wall and up to where the valve is?

2 - prices range widely from 500+ for a Kohler to < 100 on eBay. They both look nice but it appears the valve assembly for the Kohler is much more complex (and it costs 200.00 extra). Is there that big of a difference? Should I be wary of low cost faucets such as what you find on eBay?

Thanks

You do not have to have the cut off valves if you do not want them. They are handy to have in an emergency.
Check out the faucets at Home Depot or Lowe's... compare prices... some cheaper faucets are just a dependable as the high priced ones.

Thanks for the info. I do want the cutoffs based on past experience. I did go to Lowe's and they sell kohlers at the price I mentioned. I have not check hd yet.