Do you need a private tracker? IMO, most people don't. Most people are happy with what they have, or are happy with what they get from public trackers and other places. It's really only if you're finding yourself unhappy with public trackers - you're not comfortable with the lack of privacy, for example, or you're often looking content that you can't find - that I would suggest looking into private trackers.
Sounds like you're just not the intended target for private trackers, and that's fine.