AndreasBackxFor Gateron switches it's $1.99 more, but it's actually $10 cheaper for Zealios on MD. Kind of odd, but meh.
The main reason to get in on this instead of directly from KBDFans is because of the extra case options, the ability to mix and match plate and case colors, the extra switch options and the discounted EPBT keysets.
If you don't require any of those things, then ordering directly is likely better.