Be a smart minimalist gamer not a game hoarder.
Less is More. It is enough to have only the best quality games instead of hundreds of average/poor quality games that we don't even play.

Sometimes the best gaming experiences come from mods like:
Entropy Zero 2 (most interesting half-life 2 mod)
Counter-Strike 1.6 Zombie Plague mod (best multiplayer experience)
CS: Source Zombie Escape mod (best zombie escape maps)

Mods and community made content is what keeps games alive.
Corporate greed, microtransactions, live service, no mod support is what ruins games.

From 2008 to 2011 were the golden ages of gaming. When everyone had weaker computers, fewer games and limited features, the multiplayer games, maps and mods felt like magic. Now days that online experience that united everyone is gone and nothing comes close to those golden ages of gaming.
Now days what do we have? Endless grind, Hyper competitive games, cheaters, griefers, toxic community/players, content locked behind DLC, paywall, microtransactions..