There are tons of places to buy mechanical keyboards from, worldwide. Do you know what switch type you want? Do you want backlit keys? Do you have special requirements/preferences (like tenkeyless, USB connectors, etc.) ? Do you have a budget in mind? What country do you live in?
-What is best in life? -To crush your enemies, see them driven before you, and to hear the lamentation of the women.
At times they are sold for half the price that other popular board suggestions (such as the Corsair and Ducky keyboards) go for. However, with their decent build quality and Costar stabilizers, I would argue that for a lot of people, they offer the superior typing experience.
Personally I have a Filco Majestouch 2 that is very similar to it.
I5 3570 | GTX 760 | FILCO Majestouch 2 tenkeyless | Zowie FK | Asus Xonar DGX | Kingston 120 GB SSD | Sennheiser HD 518 | Samsung S24A350H