The first time I went back in 2015 the Gallery was fresh and there were a ton of options and the flipper crowd didn't exist yet. Was able to meet scotty, design a tool box putter with him and get some cool items like the first twisty SSS pivot tool.
I've been back a few more times and things are slim pickings, thank god I am a small. Not always new stuff but still usually something cool to grab.
Fitting is well worth it if they are able to open that back up some cool technology, get to try a bunch of putters and dial in either a new one or the one you bring.