MAME is up to .0173 now. I threw in the towel around .145.
I have 3 MAME cabinets, each running the same ROMset. 2 uprights, and 1 cafe.
It just got to a point that I didn't see a reason to upgrade anymore. I only run retro stuff anyway, all games from the 80's and early 90's. After a while, they all start to look the same. How many clones can you have of one game?
JR