Well, exactly this though experiment is what can potentially convince me about that ICOs are cancer.

If I really want to invest and support (and I'm sure the two must go together), I can buy 100000 coins on the dumped price, instead of buying 100 on the initial price.

Of course, usefulness isn't determined by the amount on its own, but if price goes up (which does, for good projects), I better own 100 000 coins instead of 100.