Quoted from Kkoss24:Just having a laugh .The last thing I want to see is the bubble bursting but you have to admit, these price jumps lately are insane .I got in this hobby right before covid and couldn’t believe what was going on .Told my wife I should quit my day job haha.But honestly I purchased 12 pins /5 NIB (kept 4) in the last couple years .I won’t buy another NIB unless it’s a top 3 theme for me because I could care less about value at that point I can’t afford to lose a couple k a few times a year .She’ll kick me out and rightfully so .
Never had the joy and pleasure of a NIB. Closest I got was my LOTR, I was the second owner. That was as close to NIB as I expect I will ever get. There is a title or two out there that I would consider, but all are 70's or 80's games. I like the older machines, I like working on them (bitching and cussing the whole time of course) 
The most I have ever paid for a pinball machine, my LOTR, is $4500, plus $300 shipping via NAVL. This was 2007. It smelled new when I got it, it looked new when I got it. The advantages of buying from a NIB home owner who took very good care of the machine.
Paid $300 for my Fireball II - dead machine (2006)
Paid $900 for my Dungeons & Dragons (2007)
Paid $1700 for my Fireball. (2020)
Shipping for all but Fireball and Fireball II, was $300. Fireball came in at $275. Fireball II cost me about $15 worth of Diesel fuel and a bit of lifting.