have been SE for years and I think I'm addicted to all the perks as well. I am also an MM and this year I do not think I will make SE again but at least I will always be E.
I have yet to do any mileage runs but I think if I was close I would done but I don't think I would want to spend more than $1,000. Spending 10k is way too much to keep the status in my opinion.