Effect of using ajax to reduce page impressions

I have a page that displays mulitple companies with detail information for the currently selected company. Currently, when they select a new company I am using ajax to go get the detailed information, so the page doesn’t ‘refresh’.

Does this affect the value of the site using analytics because it reduces page impressions? Or, how important are page refresh impressions from the same user?

Thanks

I’d like to know this too! I’m building an ajax heaving site to make it as user friendly as possible… then worry about the ads. Maybe you can put the ad html inside the ajax page?