Choose a ball that suits the majority in your house. If you have a very dry shot, no sense in stocking the Reax since it is intended for heavy oil. Personally, I would lean more to the Yeti or Torrids. That way you can talk up the actual ball that bowler might use. If you have a Reax on the shelf but continually push the lower end balls to clients, then the Reax is the wrong ball to have on the shelf.
But then again, perhaps you have enough bowlers of all types to justify carrying any ball from a manufacturer. I would just hate to see a new ball company's ball on the shelf and then have you have to order a different one to suit my game. May lean to another brand then.