Are you sure, because the Diablo mouse is far more expensive, but it happens to be on sale
That scroll wheel is sick. If your leaning more towards the Diablo 3 mouse i would take it. From what I've researched the site seem to be legit.
Our Walmart is currently selling the surplus stock of them for $20 each. So $30 is still a great price, seeing as how new they still sell online for $50.
I have one, they're great.
I will probably wait until I can get a Kana v2 instead