I attended my high school graduation... I attended my BSc graduation... I skipped out on my MSc graduation.
Why? First two were more of less important moments in life. Something I know my parents would like to capture... and I guess perhaps me as well to look back on. As to the ceremony for my masters degree? Nah. There's no distinction there compared to a BSc. The recognition is in the thesis you've published and the process of how you gotten there. That's why I skipped it.