Patch 6.0 brought new luxury stuff, such as Fallen Angel Wings and Wivre Horn which is a mount, both of them costs 50,000 Bicolor Gemstones, which you can get in Mor Dhona. Since you can't hold more than 1000 Bicolors, you exchange them for vouchers that cost 100 Bicolors each. You need 500 for those new items.
I did the quick math and calculated that you need to do around 3,500 fates in order to get enough Bicolors. Don't forget that to unlock special vendors that sell vouchers, you need to bring your Shared Fate level to 3 in all zones so that adds up to the number of fates. So, around 3800-3900 in total if you start from scratch.
What do you think about that? Isn't it a bit TOO much, even for hardcore farmers and grinders? Like, even if you do 100 fates PER SINGLE DAY, it will still take you 35-40 days to finish that hell of a marathon.
https://ffxiv.gamerescape.com/wiki/Fallen_Angel_Wings
https://ffxiv.gamerescape.com/wiki/Wivre_Horn