I was in the same spot as you 2 months ago…i know nothing about scripting or programming, and didn’t own a grid or arc…but decided to give Norns a try anyway. While I will say that, at least for me, there was a steep learning curve involved in navigating around this forum and figuring out how the scripts worked on Norns, once I began to grasp the concepts, Norns totally blew me away. While some scripts do require gird or arc, there are many scripts that do not, some that are great at processing audio, some that are great at creating audio, and some that are fun to use with midi.
And 2 months later I now own a grid, an arc, and 2 ansibles I’m still learning my away, but its been a totally worthwhile journey. I can caution you that at times the path to learning these instruments can be daunting and confusing, the the information is out there if you are willing to dig for it. Plus, the forum users here are amazing. Constantly blown away by the time and effort people put into programming their scripts to share, and listening to feedback and modifying/improving their scripts. And, I’ve never felt anything but welcome on the forum.
In sum, do it. And sell a kidney, because you’ll be needing some extra cash in the near future.