The offer was sent out by email to all CS2 owners, and he mentions there is no expiration. To be sure you can email Alex and ask if the discount applies to new CS2 customers. He's a great guy.Thx for responses!
Wow, I didn't know that. I've tried to find anything about it but there's nothing on CS2 or CSS product pages. Where did you get the information from? Man, buying CS2 for 299 and CSS for 279 later would be fantastic, I think I'd take them both then.