The only reason I am telling you this is because some simply don't get how much it actually does cost to have a small ad in the phone book.
A few years ago, I reduced my ad sizes ( previously paid almost $ 1,000. monthly ) and they are now only 1-inch tall ( I have 2 locations in same town requiring 2 such ads ) I have devoted a great deal of effort to my own offline to online merger and it has served me very well.
Had I not been able to do these things myself, I would have easily agreed to pay at least a few hundred dollars monthly to enable me to later drop my yellow page ads big time.
I would think it pretty easy to find 10 clients just like me which would enable many to replace their income or just make a great deal of extra income.
All you have to do is try !