Final answer:
The challenge of sustaining technology is that it can result in providing a more expensive product for current customers, due to innovations that aim to improve performance and cater to sophisticated market demands.
Step-by-step explanation:
One of the challenges of sustaining technology is that it often leads to providing a more expensive product for current customers. Sustaining technology refers to innovations that improve product performance and are often targeted at the needs of the most demanding and sophisticated customers in a market. These products are typically more complex and offer higher performance than what was previously available, which may result in increased costs. In environments with intense market competition, companies strive for new innovation to remain competitive and sustain above-normal profits, but the improvements can also result in more expensive products.