Seriously, Mikrucio's question may be upside down, but I do not understand equally people "expecting" a new game to be free because whatever.
Is it work to create it? Yes it is. So it completely in the right of its developer to decide if his work can be monetized or better spent doing something else if it cannot be.
But if one decides that he wants to do the work on a obsolete platform, even out of his love for it or because some specific reason inherent the platform or its public, I fail to see why it should be give necessarily freely based on the obsolescence.
Of course to hope to become rich or even cover the work expenses is a bit too much, but to be expected to provide work for free, no matter who mikrucio is or what the game would be, is really demeaning.