Auto-exposure was a pretty big deal in the marketplace back then; a major convenience. It put a camera into a completely different category. Looking back after 30 years, you would rather have the reliability, but you know how to do an exposure.
I love my ME Super, it was the first "real" camera I ever owned, but alas, it has succumbed to circuitry failure and lost its ability to meter. So now it is essentially an MX but still dependent on a battery. I am tempted to put a battery in it and do some sunny 16 shooting. In fact, in recent weeks, whenever I walk past the display shelf, it calls out to me to be fondled, cocked and dry fired. It is getting impatient on the shelf and wants to go out and take pictures.