For me - I've been a Plat on NW since 2005 since rolling over from being a plat on CO due to 50% EQM (in '05 I had to go to GEG a lot and CO doesn't fly there). I've made Plat for next year and Diamond is within reach but I find that this new program is actually a dis-incentive to reach for it. The extra benefits of being a Diamond are either largely useless (restricted SWUs) or ill-defined ('priority' at 5 days for EUA, 'VIP line') or questionable value add (free membership to the downgraded WCs). On the other had the program lets me roll over EQM and with the large difference between Plat and Diamond its almost like a guarantee for Gold if I stop short.

If Diamond was to be worth it, in my eyes it would need:
1. A real EUA upgrade - a 7 day window like US (I guess they are 'best in class' for top level EUA window.)
2. Real SWUs.
3. A companion upgrade comparable to what NW Plats used to get.
4. Upgrade guarantee like what NW Plats used to get.

I'm just not seeing the value add for 50K in EQM.