I posted this on another board but I think it's relevant here and also has to do with why OTM does not address the questions directly.The reason that gold items are prices so highly is because many players have 5m+ gold, and there needs to be something in the game for them to spend gold on.if they were looking into it, they would have replied that they are looking into it instead of completely ignoring the topic.
The beta testers have given OTM a few alternatives to using lux and mounts, and they seemed on board. With the addition of the bounty board, it will also be easier for players to get gold, reinforcing the necessity of a method to take gold out of the economy that isnt selling things that are pivotal to playing. Ideally this method will be implemented in the next app update.
I would be willing to bet the cost of lux has to do with real life economy and not the in game economy.
New Players buy plat and sell it to the high levels so they can buy there drops and fancy lux items.
High levels in turn sell drops to low levels so they can buy more plat from them.
I do think the gold drops rate is to low for the cost of goods but I think it's on purpose because it drives revenue