I'm not really a fan of the direction gold sinks are going in. I feel gold should purchase easy access to otherwise difficult to obtain cosmetics (and obviously BoE drops and crafted gear), rather than unique exclusive mounts etc that will simply be realistically unobtainable (outside of gold buying) for the average player.
It's such a mocking way of showing off, like grats you've got a lot of RL cash. It helps fester a negative toxic attitude that Blizz should really be wanting to avoid.