Your PC — your Personal Collection — is the core of your collecting identity. These are the cards you're keeping. Not for sale, not for trade, not going anywhere. They're yours.
"PC" gets used as both a noun and a verb in the hobby. "That card is in my PC" means it's staying forever. "I'm PCing this card" means you've decided it has personal or sentimental value that transcends market price. Your PC is where the hobby stops being about money and starts being about meaning.
Every collector's PC tells a different story — your favorite players, your best pulls, the cards that remind you of specific moments. It's the heart of why you collect.