You can only buy another item in that category if ONE of the following conditions is met:

📺 Series / Boxsets

• you have finished a season, OR
• you have watched at least ~80% of it (if buying a new show in bulk / multi-season set)

🎬 Movies

• you have watched 5 movies, OR
• you have unhauled 3 movies from your backlog after watching them

📚 Books

• you have read 3 books from your physical backlog

🎮 Games

• you have completed the main storyline of another game, OR
• you have invested deep engagement (≈100 hours) into a long running game (e.g. Sims type games)

And:

• you can only buy a new digital game after completing 5 backlog games

🧱 Lego and other hobbies

• you have fully built a currently owned set
• you have used up or meaningfully engaged with existing supplies first