Fat cat mount?

[Yshnal]

The Magitek claw mount is a achievement vendor mount
Also the previous veteran reward mounts are in there too
Behemoth,fat chocobo and Eyeball

That was before they saw that they can simply add these things to the cash shop and people will throw money at them. I'm pretty sure that most of those Mog Station items that get so frequently added as of late would've ended up as (the now gone) Veteran Rewards otherwise, but money is money. The achievement vendor gives me the feeling of being there just to "hide" that the veteran program ever existed, and it's pretty obvious that they don't give a damn about it seeing how often it's updated, and with what.