I agree with you, but have a hard time seeing how this would work, at least in a capitalistic society. In such a society, it really requires a small positive inflationary adjustment every year. This is what keeps people buying things, because the price is always going up. If prices stayed the same, (or went down as in a deflation) there is no incentive to make that big purchase now, if I can get by a little while longer without it.
That said, another alt coin that does not have a hard limit, can certainly and likely will be used in the future. But if it can be mined ad nauseam, then we are right back to square 1 again.