Any time brotha!
As for your plug n play comment - keep in mind NIB doesn't mean 100%. You might actually be better off with a used game from a knowledgeable collector who has fixed the game themselves and dialed it in for optimal play. NIB games often need lots of work out of the box....and even if they don't - it's pinball, something will break. So, whether you buy new or used, it's a good idea to get a sense of how things work and how to fix things once you become a pinball owner.
If you're gonna go NIB, I feel like you're better off with a JJP or CGC game as their QC is much tighter.
For the record I used to be a huge Stern supporter and still own 7 Stern games...while Stern always had some QC issues, they've taken a serious turn for the worse in many ways - playfield quality, built quality, incomplete/buggy code. That's why I recommend your other choices vs. GB. AFM and MM are baked in the cake classics. You know what you're getting and know their gameplay held up for 20 years. Hobbit is divisive - but I love it. It's the best overall package of the "modern" games....it's a lengthy quest game tho - some don't like that. Still needs a few bugs and things ironed out in the code. WOZ is divisive, too - but it's another solid deep quest type of game.