Chains belong on bicycles...ridden little girls or gays wearing Spandax...
This is how crazy this forum is..."Shaft failure" and the rubber boot came off...Happened to me once.15 min fix on warranty ! I take a driveshaft over a chain any day.Change the reardrive oil / 180 ml every 6 k miles and the shaft/reardrive will give you 100K miles of reliable service...Yes if you run wash-board off road I would take a chain as the constant shock-load will kill the U-joints.But that is just commons sense a lot of people lack nowadays...