Any savvy experienced pinball buyer could cut a deal for an original MM for 8k.
Quoted from fosaisu:If you love MM, you'll love MMR. It plays great. Only way to decide if you think it's a better bet than a modern Stern is to play then all and see what you like better.
If I had $8k to blow on a NIB game, MMR would be very high in my list. I'd probably wait six months though to see if they get the playfields corrected, or buy a used MMR so you can see exactly what you're getting.
Why wait?
To the op please read the several current threads here on MMr.Lots of info to help you make your choice.