Buy with confidence - he's a great guy & I'm sure a great seller as well. This was my my machine before I sold it to CrystalMethod - I bought it brand new from Marco. It was a late build from Stern (I think 2010?) and I bought it from Marco Specialties about three years after this. As I hate shipping, I personally picked this up at Marco's shop in South Carolina and drove it back nice & easy.... I kept it in the box for a year or so, then I finally had my basement ready to accept it. I believe I unboxed this originally mid-year 2014 if my memory serves correct. I purchased it as it was a game that was highly hyped & well thought of, even though it wasn't really my theme of choice. I probably played it 15-25 times or so; realized that I made an impulse purchase that just wasn't for me. I then effectively turned the game off and didn't play again until the day before I sold it last year to the current seller. I can't imagine that this has many plays on it since then and I sold it practically fresh out of the box. $8k may seem steep, but seeing as what new Stern's go for and this is still practically brand new (and a classic Stern at that), you may wish to reconsider.
Best of luck to the seller and whomever eventually purchases this - if you like the theme, this is the machine for you!