On the other hand, a memory card won't start skipping at 10PM when the kids downstairs start playing with their $10 aliexpress quadcopter that barfs theoretical

On the other hand, a memory card won't start skipping at 10PM when the kids downstairs start playing with their $10 aliexpress quadcopter that barfs theoretically highly illegal quantities of RF all over 2.4GHz. Ditto for $2 aliexpress chargers and their gaggle of $20 whitelabeled progeny on amazon.