I would argue with the exceptionality of wool's moisture transportation abilities, aside from the increased abilities of wool blends (i.e. FL Wick series), but wool does insulate well while wet.
Another piece of the "wool" puzzle, maybe the final one, is that alpaca wool is superior to merino due to the hollow fibers. Merino is more readily available and at lower prices, that being the offset.
Another piece of the "wool" puzzle, maybe the final one, is that alpaca wool is superior to merino due to the hollow fibers. Merino is more readily available and at lower prices, that being the offset.