If you want the local church to engage in apologetics, then you have to make it both affordable and accessible. That has been my experience over the past several years. If I tell the average Christian layman that he should attend a particular apologetics conference or purchase a DVD set from one of the various apologetics ministries, I usually get some sort of half-hearted promise that he will "look into it." But if I invite that same Christian layman to a free Saturday conference, then he becomes very interested.
"Give instruction to a wise man, and he will be yet wiser: teach a just man, and he will increase in learning." (Proverbs 9:9)