SDIW,
I set off on the NPPL path with a view to getting qualified as quickly as possible & then adding the next steps as I went along. By the time I soloed at ~20 hours, I had enough experience to decide that my flying would be satisfied with daytime VFR, and thus stuck at NPPL.
Given the point that you are at with your flying I'd suggest that you probably have enough experience to know what you want to do next, in fact you clearly state that in your posting. As such I agree with the others, you aspire to do a lot more with your flying and so the PPL looks a much better route for what you want to do.
Good luck with it
