Ironic that this topic is up because I throw a lot of MoRich equipment and recently started throwing 900 global stuff (amf).
I agree that MoRich equipment is very drill specific but that's really a good thing. Any driller that doesn't look at your layouts, PAP, and track before drilling a ball shouldn't be selling you ANY equipment, let alone MoRich. So it's really no different than any other equipment. Dual Angle layouts work perfectly for them (obviously) and to everyone else's point the control drillings are great.
As for finding a new home, I have always been an avid MoRich fan. You really can't go wrong with them. The NTense LevRG is in my opinion the best oiler ever made. Also I've shot 4 straight 700 sets after polishing my LevRG for a THS which shows the versatility of their equipment.
With that said, I've also quickly taken to the 900 Global and AMF style equipment. I picked up a Break Pearl and a Break Point recently. With the break pearl I've shot 5 straight 700 sets in my other league. The Break Pearl rolls very similar to the polished LevRG, it's not one of those snappy balls that most pearls end up being. It's very smooth, controlled, and strong all at the same time.
You really can't go wrong either way. In the end, look at how much oil you'll be bowling on and what kind of reaction you're looking for. If you want strong continuous roll with great carry then MoRich can't be beat. If you want smooth consistent roll with easy readability on the lanes for a similar shot each time, then the Global 900 (or AMF) equipment I think is best.