Sure, but all those businesses will have to deal with large amounts of incoming cash, so they too will have an incentive to take bitcoin. The secondary businesses wouldn't even need to keep any bitcoin as they could use something like BitPay or Coinbase to immediately convert bitcoins to dollars.
But for the primary growers/dealers, having a way of storing their profits without the risk of robbery would be a huge benefit (and probably lower storage costs substantially)
But for the primary growers/dealers, having a way of storing their profits without the risk of robbery would be a huge benefit (and probably lower storage costs substantially)