I don't believe that this is possible but I'd like to get confirmation on this assumption either way.
I have ten site collections in a single web application. I have a set of content types that I want to be used on three of these site collections. They contain a number of site columns and I really don't want to muck up the other site collections with irrelivent site columns and content types that may cause more confusion then good to the end user.
Can you target specific site collections with a content type hub? If not, what are the drawbacks of deploying and updating content types through a feature?