It will be hard to compete with ps4 games, for example. And is decentralization really important in gaming industry?
I'm not sure if it's indispensable for the entire industry... well.. they bring new possibilities and may be useful to monetize games (receiving faster, no middleman) maybe even ps and other consoles could use partially, for id/payments.
Yes, DAPPS are more improved than the usual games because aside from enjoying playing the game, your time and effort won't be a waste because you can monetize through it.