How crazy is it Android games are so cheap?

The DLC for Kingdom Two Crowns , "Call of Olympus" just came out. The base game costs 6.99€, now on sale only 3,09€. The DLC costs 3,99€ as ingame purchase.

If you compare it with Steam, the base game costs 19,99€ and the DLC 9,99€ if not on sale.

How crazy is that - its the same game! The same goes for other premium games like Dead Cells, Northgard, Slay the Spire, ... They are all way cheaper on mobile than on PC.

I know, the reason is probably nobody expects the regular mobile player, used to free-to-play games with in-game-stores, to pay the full price for a mobile (!) game, so its made way cheaper than on other platforms, to have even a little revenue at all.

I guess we can consider ourselfs lucky Android Gaming is not an expensive hobby, at least regarding the games.