I have nothing against the MadAss, I guess I'm one of those that just doesn't get it. The dealer where I bought my '09 Stella (which I still have and love more every day) sold them back then, but has since dropped them. I sat on one while waiting for them to get my Stella ready, and the first thing I noticed was how uncomfortable it was. The seat felt like those on a road bicycle, the bars were too low for me and the pegs a bit too high and too far bike (the standard sport bike riding position, though not as extreme as some)
I put a little over 10,000 miles on a 2006 Kawasaki Eliminator 125 and loved it. It was about the same price as the MadAss 125, but more substantial and way more comfortable. I traded it when I found something else I just had to have. As for automatics, I have a Zuma 125 and a Vino 125 that are also much more comfortable than the MadAss, and they have about the same top speed. I got the Kawasaki 125 up to an indicated 70 mph. If I were about to buy a brand new small motorcycle right now, I think it would probably be a Suzuki DR200. Still small and flickable, reasonably comfortable, some off road capability, and the big plus, freeway legal when you need to ride a short distance on the freeway.
I don't know if the MadAss 125 has tubeless tires, but that would be a big point in it's favor. I have owned mopeds with cast wheels, but they still had tube type tires. Maybe no one makes tubeless tires in that size.
The MadAss is definitely a one of a kind bike, and I can certainly understand why someone would be attracted to it.
2002 Vulcan 750 (engine out, slowly being disassembled) 2013 Royal Enfield B5
2001 XT225, 2009 Genuine Stella
2012 Zuma 125, 1980 Puch moped