Latex tubes are less likely to puncture.
If you over-inflate a latex tube out of the tyre (looking for a very slow puncture) an egg will form - worse than an egg, more like a two-inch nearly spherical bubble. This happens almost instantaneously: a part of the tube slightly weaker than the rest will "give", as it does so it thins and becomes weaker still. Latex seems able to become very distended without tearing. (As can arteries, in which context the bubble is an aneurysm.)
And that's what (often) happens when something sharp penetrates the tyre: a latex tube will "give" around it when a butyl tube might puncture.