Had a MAS Supernova and one of their Neo sticks years ago. The supergun and it's sticks were pretty terrible but the Neo stick was alright if you like US style cabs.
The one thing I did like about the MAS supergun is that it was the only one I've seen that was made so you could safely set the PCB on top of it. I remember when I got a Japanese supergun I was always super paranoid about the PCB getting bumped or the harness getting pulled, snagged etc. and it took up twice as much space.
I'm sure there's market for these new sticks. Lots of people love big, ugly, dumb retro looking shit and a lot of people think Japanese sticks are too small or not tough enough because they beat on sticks and cabs like masturbating gorillas. I've even had people unwilling to touch my candy cabs because the buttons are pink and purple, these things are perfect for idiots like that.