well it doesn’t discourage conquest per se, it just changes the benefit from extra money to the conquerer into less income for the conquered. which, i imagine, would depress the whole game economy. but, since most of the ‘swing’ territories are germany’s, i think this would hurt them most, with russia a close second. neither of these powers need a nerf, IMO. i think it would totally screw the axis overall. also, with the depressed economy, each unit represents a bigger proportional investment, so the dice will dictate the outcome of the game to a greater degree.
i think the purchasing/placing adjustment is at least interesting to think about though, do you think that change would work but still keep income collection last?