For me personally, the most fun that can be had in this hobby for $20 or less is on COMC. Sure, blasters are nice. You can get some pretty nice vintage cards for a $20 as well. Every collector is different, but as far as I'm concerned loading up some credit in my COMC account and going bargain hunting is as good a way to kill a couple hours as anything else.
I have to make some room where I store my incoming COMC cards before my Black Friday shipment shows up, so let's look at some I had shipped a while back but hadn't added to my inventoried collection until now. My favorite parallel of the '90s kicks things off, man I love Museum Collection.
This is my 7th Cy Young card. I have 51 Xander Bogaerts cards. What does that say about my collection? Whatever it says, I certainly can't wait for my next COMC shipment to arrive!
Sets in my Collection #32: 1954 Bowman US Navy Victories - This is a set that I only have one card of, and it was free! Gotta love free- even though one of the corners is literally missing and the card is so severe...