how many pallets you can carry has more to do with where and how you intend to put them down and/or away. the weight capacity and turn radius is more of importance as far as how much you carry, and still it has no value if you can not maneuver to pick up or put away.
the concept of "worth to a business" is very relative, and requires a point to compare towards, (how much would it cost to have unskilled temp workers move the same load the same distance by hand and feet? how much could you move the load for with a hand pallet jack or 'hand truck'? are you only going to use the 3 loader for 20 minutes and could use a single loader 1 hour to do the same work, but you can also use the single loader for 12 hours doing other work, where the tripple loader would sit?)