My singular memorable LTT upgrade was at a Marriott somewhere around Newport News VA where I got the Presidential Suite. That was a long time ago. Huge room that I barely used 1/3 the space, but it felt pretty grand!
Lifetime status means I never need to stay at another Marriott property unless I have to, and it'll likely be a CY or RI in that case so big whup about upgrades.
The accompanying UA *A silver status is at least somewhat useful.
I miss Starwood.