Its mainly about links and the cost of other similar sites.
I will put 3 or 4 one way links in (you don't have to link back).
We subscribe to a few of these site and they're prices are mental. YELL.com, ufindus, city-visitor etc and they all want £300+ per year.
Be nice to have an affordable one.
This offer is open to the management of Express Cleaning too. (small add on every main page?)
in my view its cheap advertising.