If your success hinges on ‘cookies’ you’ll go broke like newspapers that use it to sell advertising. Oh what did they do before the web? (hahaha). Anyways, if you count the number of times ‘the cash register rings’ and ask your webmaster how many people saw your website, it might be work out to 10%, 50% even 200% because ‘cookies’ are an extension of reality – a virtual reality (I’d rather have it sing for me than be a ‘starving artist’ under it).
Web Measurement is like ‘Medical Diagnostics’, get the right advice.