Major defects can result in the product's failure, reducing its marketability, usability or saleability. Aesthetic improvement may add value if it improves the saleability of the product. This exclusion negatively affected Byrne's commercial saleability. Using custom-designed software, they evaluate each title for saleability and set selling prices accordingly. This allowed him to develop his personal art as he wished, absent of saleability considerations. The magic realist writer with difficulty must reach a balance between saleability and intellectual integrity.