The is a consumer choice - look at literally every new product announcement that comes with a >4.99 price tag. Basically you get people saying it’s unreasonable because making a copy of an app costs nothing. Because heaven forbid they give any value to the time required to design and create a piece of software.

It’s often followed up by claims that they could do it thenselves for much less in much less time, ignoring the realization that that is only possible because the original developer has done all the hard engineering and design work, and worked out how to make things fun, etc. (my most obvious memory of this was when Threes came out and it was instantly cloned by people who had full access to the game design)