Money Money Money, something a bit of a demand these days if you try to keep your software up to date.  The thing is most folks working in digital art have several products to keep up to date so sometimes they have to wait a bit before they can pay the upgrade for something on their list. 

So it's a bit frustrating to know you could have bought the upgrade at a reduced price but just didn't have the money during the 30 days they offered it before pulling the plug. Kind of like pressured sales.  Oh well, but sometimes something has to give when your faced with updates for other things like Adobe CS5 Production Suite and Cinema 4D release 11, etc.  It's all just too much to upgrade at once for of use more limited means people.