Restock for Cyberpunk Viper Ultimate?

Hey - I missed out on the Cyberpunk Viper Ultimate and now it just says "out of stock." I signed up for the Notify Me email; hoping it will be restocked soon. Anyone here have experience with limited editions from Razer like this, and can comment on restock availability/frequency for the razer.com store? How often are items like this restocked? Do they usually sell out pretty quickly again? Am I out of luck and this was a one-time limited run? Considering a few I've seen on eBay now for like $400... :( Thanks in advance for your help.