Valve "followed" 1.7 million Steam users for over a year, and now reports those gamers spent $20 million on microtransactions and another $73 million on games and DLC
just did the math, I've averaged about $165/yr on steam, with very little (though not none) microtransactions. like maybe less than $50 total in 15 years.
I think I probably have a similar average on my 18 yr old account, except the only microtransactions on my account are credits from selling any hats, skins and duplicate weapons I unlocked for free in TF2 and CS 😅