-Not available to buy or only second hand for exorbitant prices (cough cough Nintendo)
-Overpriced subscription (cough cough Adobe)
-Getting a version of a game you already bought free of invasive or resource-heavy
-Trying out a paid program/game/etc. with the intent of buying it if it you like it and it runs well
Something I really don't like is stamina that runs out after running for like five seconds