If I ever decide to hop across the pond, I'd absolutely be prioritizing that stop.
I went to Arlington a few years back. My brother and sister-in-law came with (I was staying with them on that leg of my vacation) to be our tour guide because they'd already been there several times and wanted to show me around. We went on a "school day", so I had to wait to leave until my then-preschool nephew was dropped off at school and SIL got back home. The whole time we were there, they were pulling me along because they already saw everything and they were on a time crunch to get back in time to pick up their kid. Ultimately, I only got to see a fraction of what I wanted to see and never really got much of my desired opportunity to 'pay my respects'. Even the wife was pulling me along some because Arlington didn't mean as much to her as it did to me. Lesson learned; should've went by myself. If I do get over to Normandy (or back to Arlington for that matter), I'll be going by myself or making it perfectly clear to anyone with me that I'm going to take as much time as I want to digest every detail and will not be adhering to a timetable whatsoever.
