As discussed in the previous thread.. finding ice.. not a real big problem unless 5+ days away from a city. Most people now use reusable ice packs or gatorade bottles filled with water and frozen.
The simple / no maintenance / no electricity / use it as a seat or a stool / toss it in any vehicle / bring it on your boat / carry it to a picnic of a cooler definitely makes it more of a tool and less of an appliance.
and them prices...
the enemy of all coolers is air.. the more often the coolers are open.. the more often the stored energy leaves. in the electric solutions.. that recovery is covered by electricity.. in standalone coolers.. there is no recovery only slowed decay of energy (unless more ice is added).