Thank you guys for all the replies.
Spending the extra money is not worth it then for me. I will continue to split my business between DL and UA, in keeping with being a 'free agent'. I thought I'd aim for status in StarAlliance/ UA for the next two or so years because they are good in covering my travel pattern for that time period.
Originally Posted by
Kacee
Somewhere between .75 and 7.5%

And DL is the trailblazer on that score. I find the notion of 75% domestic upgrade rate as DL Plat . . . highly doubtful.
I used to live in a small town non-DL hub. I have since moved closer to SEA but my friend continues to live there. Her travel pattern is usually non-DL hub to non-DL-hub. And she picks the awful flight times.