For our business model, it works best. We are building a brand not just a bunch of websites and the introduction of content which we did not create would be a huge mistake. Anybody can dump a bunch of content in a pile but if it is not better then the next guys, they are going to just move. In our niche we all pull from a limited pool of models so we each have to work hard to make our memberships valuable. The quality of our content is not the issue.

As to Dean's question, anything which makes your site more attractive to a member is worthwhile.