Quoted from burningman:
I have heard the same, and was looking for a Premium just for the light show.....anyone know if there is a mod for a Pro that can get you close to the light show of the Premium?
The "light show" really has nothing to do specifically with the color changing inserts. That is much more a "feature" during gameplay. If you are willing, and have some soldering skills, I feel that you can dramatically IMPROVE the lighting and sound of a pro for about $300 and some time. It's really better in my opinion, since you can choose exactly what LEDs and sound options you want.
Here's my MET pro shopping list:
Misc. speaker wire+solder ($5)
8 Blue "directional" coin-taker LEDs in place of the 44/47 bulbs used in the BACK PANEL of the play field. ($6 = $1.50/ea.)
8" "Pyramid" brand woofer from parts express - [flush mount] ($13)
Plate amp from parts express ($59)
4" "Kicker" brand speakers from Wal-Mart - [flush mount] ($44 pair)
12 v LED lit flipper buttons ($5 buttons + $3 LEDs)
Metallica belt buckle ($12 e-bay)
DIY LED white foam board panel ($7+$40 for warm white,blue,red,green LED strips on e-bay)
Cliffys for shooter lane and mystery hole (~$50 shipped)
Snake LED mod ($20 or cheaper if DIY)
2 Spinners and Targets ($37.90)(535-0179-00 $11.00/ea. @ Marco + 515-7088-00 $7.95/ea. @ Marco)
TOTAL, not counting shipping=
To stay with your question, if you are even more ambitious, you can daisy chain any currently existing "flasher circuit" on the play field and add some accent lighting wherever you want. Like on the play-field OR flashers in the whiteboard-head-mod thing. Wiring can get a little messy so I would strongly suggest to draw it out before you actually start to wire it all up. I believe that Mezelmods has a kit to accomplish some of these features for those "less accomplished/experienced solderers" as well.