Listen on Dr. Lemco's take on PYT and then read below if you need more info!
As the name suggests, in a PYT break you get to decide what team you want to collect. No random assignments and no drafting cards. If you are only interested in chasing LaMelo Ball cards, then you pick the Charlotte Hornets. If you want to chase Randy Arozarena, then you pick the Tampa Bay Rays.
In PYT breaks, every team is priced differently based on the number and quality of expected hits, on average, for that team. You can find very good value teams and very expensive ones, typically based on each team's rookie class strength. Aside from being able to pick only teams you want to collect, PYT can help you better manage your spending for what you want to collect.