Ah, this is all you've done together?
My wife had 30~40 when we got together, and I was at 20~25. We've probably done 30+ together, some overlapping our previous trips before. Her last was Hawaii and we went there for our 10th anniversary. I really did like it there. But for me just liking a place isn't enough to make me need to go back soon, I have to love it. Because there are so many other places in the world to visit that I haven't been to yet. I'd rather go to a new place than some place I just liked. I really want to go to Alaska but want it to be my last state.
I spent around 15 years going to Northern MN every winter for work, I really should have taken a day and went over to ND/SD at some point. What I imainge is there's just not so much to draw someone to visit the area, and things are also really far apart. So you may need to make a trip just to go there, which doesn't seem that appealing. It seems like you almost have to drive there, and it's far, so there's another time suck. Just lots of little things that seems like it's hard to go to the area. No so much hard but when I think about doing a trip there VS somewhere else, the other place wins out.