And all that is written "no," I want to say - you are enemies of amiga platform.
Oh dear.
Developers spent a lot of funds and time
Yes.
that would create a new, relatively competitive platform
No. Whichever way you look at it, it sure isn't competitive.
and you can't spend some money once in 2-3 years to upgrade the computer on your favorite platform?
"some money". You're kidding right?
I even say that it is not so much a question of buying a new motherboard, how to support the development amiga as platform altogether. I believe that everyone who is connected with Amiga, must somehow try to help in its development.
Regardless what you might want to think AmigaOS4 isn't the whole amiga platform, there are many other interesting developments and products to buy. Many don't consider AmigaOS4 any more amiga than the alternatives. So, why should anyone feel obliged to pay for something they don't consider worthy?
Just because someone is stupid enough to create a product that is hideously expensive and that has very tiny market doesn't mean we should be saving them from their own stupidity. Create a product that is reasonably priced with great balance of features and people will buy it.