Those worn out undies tend to fall half way down your bum and make you feel naked and exposed. There is nothing like fresh new hipsters, this is an excuse to treat yourself IMO.
But those ball holes are like your favourite spot on the couch, you spend years trying to mold the fabric to suit your shape!
You know what I love...those people that buy 365 pairs of underwear once a year and then throw the used ones out at the end of every day.