I always see OzBargainers saying they've already got 2, 3, 4, 5, etc number of something (e.g. headphones, powerbanks, wall-chargers with PD and 5 USBs, ), usually something that doesn't require multiple of something to work (e.g. tyres).
How do you justify owning so many, and how do you justify buying more? Especially when you have more than one can justify?
I own 3 power banks, and simply cannot justify buying anymore even when great deals pop up.
Impulsive behavior.