I understand that many app makers have still not decided to jump on to WP and we have less apps as compared to iOS or Android.
However, even the apps that are present are costlier than other ecosystems.
For example regular apps like asphalt 7 ( 8 is still not present in WP store) and Plants vs Zoombies are costlier in WP Store.

So here we are with lesser apps and we pay more for the same apps that are also present in Android and iOS. Not very lucarative for a new person to jump into WP ecosystem.