We have close to 40 clients that would say otherwise
Our clients are very happy with the amount of leads they are getting and the price is very small compared to the amount of PPC (they now spend less than 1/4) dollars they were spending before using our services.
I understand YOU may have all the know-how to get this going and maybe you can find 'reliable' developers that would spend all that time developing, marketing and maintaining a real estate site 'that actually produces' but we have many clients that would testify that our services are worth EVERY penny.
You claim that you can get all this done for less but those are just YOUR claim and everyone is entitiled to their opinion so I'll just end our discussion here. We've signed up two more companies that were referred to us by our existing clients and that is good enough for me.
Good luck with your site and thanks for your input.