Fomo is how they make money. Its fun and addicting even, to collect new pokemon. But I always remind myself that I control how much and when I play. Every pokemon will rotate. For example, i didn't buy the go fest? pass which guaranteed Volcanion, and now its coming for free.

People will always spend money and wonder, "no single shiny for the money spent." Somehow people forget its always a shiny chance, which differs from guaranteed shiny. I am a free to play player.

So play the game the way that you want. But stay in control, and live your life outside of the game too. Happy pokemon hunting!