Hi Gary,
I personally am finding from the questions we ask clients that the the majority are looking for a quick contact point of reference tel no or email and pay little attention to the sites in general....... the analytics's back this up also but if 70% of your new clients are getting you from the search engines a proportion of those will look at content and will go else where if the landing page does not capture their attention so Good Seo for the time being is still paying dividends.
Untill Google moves all organic listings of the 1st page due to their impending changes requiring you to pay either by PPC or for a placement in Google local places when a quick contact point will definitely be the order of the day I will continue to utilise good seo........
Thats why I think posting prices in PPC shoots you in the foot because the prospect will not even bother calling.....
You have already set out you stool so they will ring the next add and if the voice on the end is pleasant and says the things the client wants to hear..... Bingo You get the job!
Cheers Leigh