Well, it really is a little pointless. Of course there are more inexpensive ukuleles sold than expensive ones, and mass manufacturers with fifty different models that are available in every music store will sell more units than a smaller place that sells regionally or online. If a list like that came from, say, HMS, based on actual sales figures, I think it'd be interesting (mostly to see how comparable brands do in relation to each other), but random people (a self-selected group at that) posting their favorite uke, of which they may only have one or two, is meaningless. If Jon made a list like that, based on his first hand experience with five hundred and seventy-two different ukuleles, that would be meaningful!
I like the idea of posting one's worst ukulele, but the problem would be the same. Of mine, I would probably name the Stagg concert, but it was still a €130 ukulele that is objectively a lesser instrument than my Barron River or the KoAloha that's on the way, but it's not a terrible instrument (and would be quite good if it had had proper setup right out of the box). It just doesn't compare to instruments almost ten times as costly.