Judging by everyone's reactions, I am again an odd duck. I like the auto shut-off.
I just got a Black & Decker Evensteam a couple months ago when my other iron suddenly found itself on the floor and the main housing for the water was cracked beyond repair. The Evensteam has an auto shut-off, which I wasn't aware of until after I got it in my hands. Depending on the quilt I'm working on, I also use a Clover Mini-iron. If the iron has already shut-off, I move it so it starts to heat up and while I'm waiting, I'm at least setting the seams with my mini-iron. By the time I'm done with the mini-iron, the Evensteam is already cranked up and ready to go, then I give the block a proper press and steam.
Considering the countless times I've left other irons on overnight that didn't have an auto shut-off, I'm glad I got one with it.