If Auran proceeds with doing this, then I will not buy their product again.
At this stage, I really don't think they care if you (or I for that matter) buy another version. As long as they have the "faithful" to keep buying and spreading the word, why do they need you or I.
I've been faithful over the years with buying UTC, 04, 06 and 09. I've been quite critical at times through the years as well. When it's all boiled down though, I respect those at Auran that I have spoken to personally. They are a good bunch of people doing what they are allowed to do. Yes, I said allowed to do.
My choice as to creating and what version I like the best doesn't mean I want to see Trainz go away. I've met and come to know alot of great people via Trainz. Including some of the current and past Auranites.
Now if they can just fix the damn alpha texturing issue, 09 would be perfect for me.