Transmogrification and Collections: Playing Outside

For many players, WoW is not about raids, but about collections. Transmogrification turns this into a separate game.
What is a transmog
Version 4.3 (Cataclysm) added the ability to change the appearance of things while maintaining the characteristics. The appearance needs to be “learned” - open an item in the collection.
Rules
- You can only change the appearance of items of your own armor type and class.
- Legendary items most often cannot be used in transmog.
- Sets can be saved and switched.
How to collect
- Play the old raids (Naxxramas, Tierra del Fuego, Bastion of Twilight) - there are a lot of beautiful sets there.
- Quests at low levels give unique "simple" things - sometimes this is the best image.
- Reputation sets often look better than raid sets.
Why is this other than beauty
Collections are a way to play once content is completed. Plus, many mounts and pets are collected in the "open world", which means you are exploring the game, not just the raid.