My guild is doing the same, our other Warrior still raids with them and is on the weekly "how high can I RNG my rank" with desync ring. Honestly that whole RNG + ring de-sync bollox is part of what put me off the game, having to do really inconvenient gimmicks just to get rankings and hear people talking about their all-star ranking like it actually matters. Combine all that bullshit with the boredum of stale content and the gold from boosting is just not enough to keep me going. Don't get me wrong, I'm a super competitive person who loves a sweet dps log but it's all just bullshit at this point, meaningless RNG and cheesing.
I guess I'l have about 1mil gold in Legion since I spent the rest on my Sub, which is good until 2017. I saw a lot of guys doing the same thing with boosting at the end of MOP and a lot of them were so burned out they quit during Highmaul. Come Legion I would have had a 7 month break from raiding, 100% batteries charged... Might be a lot lower on gold than if I had stayed to do boosts, but fuck that life is too short.
/Offtopic rant
@Murlocbait - Ring-Desync is one of the single most important/most influential things you can do for your DPS as a Warrior. No amount of playing skill or good RNG can really allow you bridge the gap difference it makes. You will see your best non de-sync logs crushed like you just turned up to a Mini Cooper race in a Ferrari.