Unfortunately over the years I've moved from a more rural, larger space into an apartment in the city - and thus comes the downsizing. Been in the hobby for around 6 years or so, went from a collection of \~200 with a dedicated board gaming room to a shared space and a highly pared down collection (around 30, including small box games that aren't pictured.)
Luckily, with the downsizing it's made me absolutely learn to appreciate and play the games I do have and they all get played regularly, no more shelf of shame :) Duds or mishits also get filtered out very quickly.
I play with a group that slants towards heavier euros and high conflict, and the only thing I would change about my collection is a bit more space to store some easier on-ramps into the hobby when new players join in. Viticulture, Agricola, and others have migrated in and out of my collection over the years, but they tend to collect dust and are traded/sold pretty quickly.
The space, including the table where we game:
A closer look at the storage area. Books on top, as well as the Iron Clays set by Roxley.
Lower shelf, right side. Food Chain Magnate, Bus, Pax Pamir 2e, Root, Pipeline, Panamax, Die Macher, Barrage.
Lower shelf, left side. Age of Steam, On Mars, Vinhos, Secret Hitler, Tokyo Market, Tokyo Metro, Trickerion