My budget was around 5k so I opted for the Pro. Not owning a premium I can't comment on whether or not its worth the extra $1800. What I can comment on is how much fun this game is. I'm a casual player and the code is plenty deep for me. I'm 100 games in and haven't sniffed Jedi multi-ball yet. I'm just starting to learn how to move around the shot multipliers and have yet to start escape from boba fett. I've owned most of the classic B/W at some point and the SW code is deeper than any of those that I remember. Bottom line is that it's fast and fun with plenty to do. I love the big display and it pulls in my kids and non-pinheads. Maybe a JJP is deeper and better, but that's also $3500 more.
At the ~$5200 price point, I can't think of a better game out there. My original plan was to play for 6 months, sell and move on. But this is seeming more and more like a keeper.