Hopefully this isn't breaking rules. Yes it is a veiled attempt at advice because I've been hemming and hawing. But the question can be answered purely as is. There are obviously pros and cons so I'd like to know how you all feel.
Gastric cancer is terrifying. With a family history, I hope you are able to continue to be monitored. Luckily there are other ways to monitor it beyond imaging. Like how colonoscopies are regular screenings for colon cancer, they can scope your stomach as a way to screen for gastric cancer.
I have a family history of esophageal cancer which is a bit scary to think about! I'll have to remember to get it monitored as I age. One of my uncles died of it and I'm not sure if the other will end up dying from his.