Tracks in the sand - I wouldn't see a need for them if you are happy with the climbing performance of the tires. Everyone has reported great performance with the 24" Argo tires in sand. In fact they are the best tire for sand, snow, and water for an amphib. Tracks in my opinion would just rob some power, be more expense, and add potential repair time if it walked out of the track. Get the factory Argo track if you decide they will suit your riding conditions.
Everybody dies, but not everybody lives.