Which Keyboard is the best value?

[raidfive]

I'm freelance web developer. I would like to buy a mechanical keyboard.
Which keyboard should I buy?
Budget 80-100$ (Local currency 6000-8500 BDT)

1) Gigabyte Aorus K7, Switch: Cherry MX
95 USD (8000 BDT)

2) Cooler Master CK550, Switch: Gateron
75 USD (6300 BDT)

3) Motospeed CK108, Switch: OUTEMU
60 USD (5000 BDT)

4) Corsair K68 RED, Switch: Cherry MX RED
113 USD ( 9500 BDT)

 

[jacob68]

Go test in a store. Key response and how it feels is more crucial than specs...in this case.