These are good points. However, early holders would be rewarded the same, just along a smoother curve, and perhaps rewarded even more, because bitcoin might be perceived as safer to adopt if the price rose more steadily.
And, perhaps more important, actually useful money, and even SOV, benefit users and the economy much more, when they rise in a manner that's stable and dependable.
I wasn't arguing against the reduction in the block-reward, but rather against the harsh and sudden 4-year schedule instead of a smooth per-block micro reduction that would achieve the same thing, without harming price stability - a desirably quality of good money.
Well the fact that Satoshi base the supply to how the gold is mined state it. Satoshi wanted to established an ever inclining currency I guess. Probably with the four year period, Satoshi wants a seasonal spike in price so that holders will get rewarded handsomely and there is a window for the new comer when price spiked and dumped.