The obvious answer is profits. Nano *might* have loads of utility but utility doesn’t matter next to big gains. As a matter of fact, the very utility Nano offers is what kills the possibility of a huge price pump and hence interest. Having no fees actually means there are *less* ways for traders to make money and profits which means it’s left by the wayside, utility be damned.
No fees means there’s no constant and wild swings of buying the token for dynamic gas prices from unpredictable demand thus raising the price. There’s also no excess buying where traders buy a lot more of the coin for gas than they need for just the current transaction. Which means there is no reason for scalpers and speculators to take interest to profit off haphazard buying to pump and dump the price. It also means that there’s no community of miners, who may hold or sell to create trading opportunities for profit and no stakers, who support the price by buying and holding tokens while staking, both of whom create trading opportunities for price swings. Very notably, Nano network does not support any tokens or smart contracts(like the Bitcoin network) so the only potential profit-making venture is through a single currency of Nano coin itself with basic trading compared to potential profits of hundreds if not thousands of other tokens with smart contracts trading opportunities.
In actuality, Nano’s amazing utility is actually terrible for its price.