Samhain Publishing is closing at the end of February:
"The last of our new titles launch February 21st; I hope you will check them out and support them as you have so many other Samhain titles through the years.
Our site will go dark at the end of the day, February 28th. Please take a few moments and visit, buy what you might have been planning on getting someday in the future, but download and back up your bookshelf because you won’t have access to it after February 28th."
It doesn't say mention anything about discounts in the mail, but it seems like everything is 50% off in the store: