What is the most expensive high you've had?

This may be a repeat post but I'm currently on a waiting list and have nothing better to do so why not. For me it would be a .5g DMT bumped with a large amount of NBOMe-K (I think it was 10mg but that's just what I would guess as I don't know much about it). That was right before I had to stop using drugs because it made me very sick to my stomach and I threw up a couple times. I don't do drugs anymore but I do miss them.