>>4317192Honestly I said the same thing until I found that one at an antique shop for 10 bucks.
The cool thing about the MD-4 is that not only does it run the film advance and usual motor drive stuff but it runs the meter too and the grip just feels better in the hands. It's a bit of heft but well worth it. And it will run on rechargeable AAs too just fine, I put a set of fully charged Eneloops in it when I bought it like 2 years ago and haven't charged them since and ive probably put 10 rolls through it.
You don't buy the motor drive for speed. It will waste a 36ex roll in 9 seconds. You get it because it makes it easier to hold, and makes a cool sound when it advances. It's almost required if you're shooting any kind of heavy metal like a 300/2.8