I've one grandchild and would be perfectly content if no others arrived anytime soon. Her parents are in the midst of divorcing and she currently lives with us. We were in the process of figuring out how longterm RVing will allow us to see her frequently and decided that using airlines made sense. We'll fly her in on various holidays and ensure we visit the NE during her summer break.
I fondly recall my relationships with my grandparents (they all lived in the same city) and hope that when I die (and before) my Princess feels the same way about me.