It's been about two years now and the original earpads have deteriorated to the point I get white flakes on my shoulders. Purchased some new aftermarket ear pads and tried them on. Overall not bad, they are certainly bigger than the original pads and maybe next time I'll try velour pads. I only wish they sold a replacement for the headband which is flaking badly as well. Was interesting to see that the speakers inside the headphones are angled making L/R actually meaningful. Earpads cost me $20. Kinda pricy, but necessary. Update 3/2019 I barely used the M50's and after 2 years the 'new' ear pads disintegrated. I purchased some velour ear pads instead, but am regretting it as it completely changes the sound signature of the M50's. Although they do not last for more than 1-2 years, the traditional vinyl ear pads are better. Accept it as cost of ownership.
An introspection and ongoing dialogue with myself on how to live simple in this modern, materialistic society.