There is much less ingredients in digital products that can be a shortage to give away more digital products. Compared to physical ones where capacities are much more expensive compared to the price of the product, I think the parent comment is basically right.

Of course there is chipageddon now, nothing is without physical. The point is the IP and customer service are the major cost drivers, not the property, the assembly line and the workers.

One more thing is also true: you can scale up/down really fast these days and for a fact at least this won't change your price as even your scale-down risks/impacts are much lower.