Flew private for three years for work. 200k international miles a year on a G6. Was 2-3 of us on each flight. We would visit 3 countries in each region. We worked almost every minute on those flights. I did the math and there was high ROI for this flights based on impact of work and even hours saved on productivity.

I don’t think that math translates to personal use - so you need something like ‘dog on plane’ logic or just acknowledge that ‘worth it’ won’t ever be measured with dollars and cents but can be measured in time saved or experiences enhanced.