Quoted from HighVoltage:

Did you change your mind about my RBION? It really is like new... I forgot to tell you, it also has NVRAM, you'll never have to worry about battery corrosion or changing them!
Forget DI, it sucks...
Just kidding, I like DI too, but would way rather have some game variety: you can get 2 lightly used, like-new machines for 1 NIB DI.
You are actually more likely to have issues with a NIB too...
https://pinside.com/pinball/forum/topic/first-time-pinball-owner-to-be-expected