What makes Wooting and Razer keyboards worth $200+ if snap tap is banned? What difference does a $250 mechanical keyboard make compared to a $50 keyboard?

I want to save money to buy a good keyboard, but I don't know if it's worth it to spend the extra 150 euro's.
There are mechanical keyboards for 40 euro's or so.
Why would I need to buy a ~200 euro keyboard?
The snap tap feature is banned, but how is it banned?
Do razer and wooting offer other features that are worth the extra ~150 euro's?