Android Apps: 7% used the free filter, vs. less than 1% for the paid filter

7% of visitors used the free filter, vs. less than 1% enabling the paid filter.

The evidence following the statement doesn't seem to support it. If 92% of the time having a price doesn't affect discoverability how can you possibly say free has "much, much higher" discoverability?

Not to mention this article commits the same fallacy that large media companies do when they talk about piracy. Every pirated copy does not represent a lost sale, same as here where every search filtered by free doesn't represent a lost sale opportunity. It could very well be that these people that filter by free would never pay for anything no matter how good it is.