Suggestion on the transaction itself. If you're pins are in nice condition I would think you've got $15-$17000 value in the ones you mentioned(TAF, LOTR, STNG) plus or minus on a retail level. Why not just sell them yourself and get the games you want as you sell you're current ones? You might also consider putting ads for trades on the titles you want. NIB Pros are somewhere around $5200 delivered and there's no shortage of SM's out there. If you factor in the money you were going to contribute to make the deal you may end in in a position where you have enough to do some premiums or buy another used pin in addition to the three.

As far as game play goes, I think a lot of that is personal preference. Both NIB titles you mention are a blast! Quick ball times, great over package. SM is an absolute winner as well, long ball times though which gets old after a bit in my opinion.