"i.You will not copy, reproduce, alter, replace, distribute, reverse engineer, decompile, disassemble, display, perform, create derivative works based on, or otherwise modify the Stern Pinball hardware or Stern Pinball Software or any Authorized Update, in whole or in part; and will not commercially exploit any of the foregoing"
I don't think the part about modifying Stern hardware is enforceable. Changing GI LEDs to different colors would fall under that broad clause, not to mention adding flipper fans, decorative toys, etc. Most installations require some changes to the base game, even if just another hole drilled somewhere. Hell, I had to reposition the 3bank in my AIQ because it was installed too far back and the targets wouldn't drop. Will there be an exception to this clause for fixing factory fuckups?
"In view of the rights held by third-party owners of Authorized Content (e.g., music and video clips), Stern does not have the legal authority to give permission to stream the gameplay of Stern Pinball Machines"
Maybe Stern should start securing those rights during negotiations with rights-holders? People streaming themselves playing is a core part of gaming these days. I figure folks are going to stream anyway, will have to see if any rights-holders try suing.
"Stern Pinball may update the Stern Pinball Software from time to time without further notice to You, for example, to update any anti-piracy, security, and technical measure."
If Stern moves to distribute updates by forcing end-users into an online-only subscription, there will be no more Stern games for me. One of the joys of pinball has been NOT having to deal with online DRM, and there are plenty of older games to explore that don't have it if Stern starts crippling the new games.