I have owned my '23 Rocket for one year. I have ridden about 7k miles here where I live in Maine in that time, along with a 2k mile trip to North Carolina a couple of months back.
I have not seen a single other Rocket on the road besides mine in that time (and I've looked for them!). I did meet a fellow at a local gas station last month who said he owns one.
Apparently they're just not super popular on this end of the states - or at least that's what I seem to be anecdotally observing.
It's funny... when I decided to trade in my then bike for a rocket, I saw them everywhere....highway, parking lots, 2 or 3 times a week when driving to work in my car... I buy mine and haven't seen one this year yet....
Head down to Ct. and you'll see one! Or if I get to do my Nova Scotia trip this year, I'll pass right by you. I actually saw one right near my house in Ct. on one of the first few rides I did after I bought it. The guy did a double take as I went by, and so did I.