Bottling beer is quite expensive, and the set up needs to be right with regards to machinery, bottle machine housing, sterilistaion etc.
Most small breweries would send their beer unfiltered to the bottlers, which leaves the bottlers with this job as well as the rest. The filters used are also a money issue.
If you add all the bits up, it might not be worth bottling a small brew. Plus as bottles are mostly produced for the off sales market, you would need a rep for the product as well as transport. This is the middleman who puts his share onto the price of the product.
I've spoken to micro brewers with bottling lines, who say it's only worth the effort for their own product. Plus i've spoken to other micro brewers who say the cost and logistics cost more than just sticking with kegs.
I say do one thing and do it well, then if sales improve and the business makes money, look into bottling.