I did/do own them all, but my members attempted to use them, but never really liked them. Before I had planned to switch to xF, when I bought a license to support the cause, but had plans to stay with IPB, I polled the members and they wanted me to trim things down and focus on the forums.
I had already started doing that. I had removed the Gallery and the Blog app and was in the process of removing Links and other items that were hardly used.
I never could get IP.Content to run and act the way I wanted to because no matter what they say over at IPB it's design for a developer to use.. not the weekend warrior like myself. So, I did lose the additional apps, but the lack of use and with my membership stating they didn't want them, I didn't lose anything.
I will add a WP blog for content, but it will be a sudo part of the site instead of a main part.
Jamie