I agree with you...Nitro4D needs our support...but then again, he also needs to understand that people who have supported him in the past also need to be taken care of - that is how you make your current users loyal and open the door to future loyal customers. People who have never purchased from Catastrophe in the past may wonder if they should purchase Nitroblast now. After all, in 6 months NitroNuke (or whatever the next version is called) could be released - so some may be inclined to wait for that next version to be released if they know there is no upgrade path from Nitroblast. But if they knew that buying Nitroblast now helps get them a discount on the next follow-on products or versions, that concern is removed and Nitroman gets a sale today. Everybody wins. This is just good business.
IMO 40 € is a bargain, even if it builds upon Catastrophe. And the money will support Nitroman to carry on doing his magic.
But I think you have a thing with getting your software as cheap as possible, if I remember correctly from previous posts I´m with you all the way on that with Adobe, Autodesk or ,as of late, MAXON, but plugin developers like Nitroman deserve the asking price. Again IMO.
Also, times are tough! Why shouldn't I always look for a discount? Usually, if you ask with respect and make a very good argument to support your request, people listen and you get the discount. The worst that can happen is that they say no. Try it sometime - you may surprise yourself.