^ It was 5k before but people used to increase their rep with Thrallmar in order to get it for 4k. Now its 4k for everyone.
The expert one was a request from many wow players. The main issue was that they were using only the flying mount which gives 310% rather than choosing a mount they like the most. So if a player already had a 310% flying mount than it is applied to all of his mounts. Otherwise, you need to buy it for another 4k. To be honest, it is only good for farmers for who speed does matter. For the longest time I had been using the 150% ms speed mount before I started doing GDKPs.
The expert one was a request from many wow players. The main issue was that they were using only the flying mount which gives 310% rather than choosing a mount they like the most. So if a player already had a 310% flying mount than it is applied to all of his mounts. Otherwise, you need to buy it for another 4k. To be honest, it is only good for farmers for who speed does matter. For the longest time I had been using the 150% ms speed mount before I started doing GDKPs.