I have merchants where 1 in 4 people I send result in a sale/lead but I also have other merchants where is can take a few hundred per sale.
That's the problem I see, sometime hear folk slating a program because it's not doing anything for them, the program it's self might not be bad at all, just they couldn't convert with it.
As an example on DGM they have a Cottage rental site, I fell I could send them thousands of people from my site and never make a sale, not because they have dodge tracking but because it's not a fit to what I do at all. So benchmarks really are hard unless you get together with a bunch of sites they same as you and share data you will never know (not like your going to do that now are you).
On another note, I found something bizarre in my logs, I
am number 1 in Google for "cottages" got no idea why as I have never had a link, banner or text on my site for "cottages" however if they keep showing up I
am going to have to stick a link in see if I can make some money out of this freak position