I noticed that too on ebay, but I think it's because 1) you can only buy from elux inthe states and 2) they have been sold out of teh mm and gm forever, until recently and the GM is sold out again!
Anyway, I know this is an old thread, but I thought I'd give my 2 cents after owning the MM for a few months.
Pros: lightweight bag, and though the straps are thin, they are very strong. Holds a TON, can wear cinched or open.
Cons (for me anyway): open top (I like a zipper), straps can hurt your shoulder if you have a lot in the bag, the little leather things that cinch the bag fall down easily when you want to keep the bag more closed (though I use little charms to hold the 2 d-rings together on each side when I want to keep the bag cinched like a bagnitolles.
I know it looks like more cons than pros, but I am really quite happy with the bag. I am almost considering selling and getting a GM, but I think I will stick with MM, since when it's full it's enough weight on my shoulder as is. I don't want to overload it!