A company makes shatterproof, waterproof cases for iPhones. It makes only one model and has been very successful in marketing its case; no other company in the market has a similar product. The only customization available to the customer is the colour of the case. There is no manufacturing cost difference between different case colours. Since this company has a high-volume product, its controller thinks that the company should adopt activity based costing. Why might activity based costing not be as beneficial for this company as for other companies?