100 billion pens. Every single one destined to be thrown into the trash.
I went looking for a refillable pen after this announcement and I have to admit, I had a hard time finding an alternative. Ball point pens are hardy creatures, reliable and dependable with few faults. I got quality ballpoints and reloaded them with new ink barrels, but admittedly after three or so refills I just dropped them in a drawer. I decided to go for the old school fountain pen because they have a quality that inspires good penmanship. There were a lot of options I found, but these pens are more for symbolism, given as gifts to bankers and the like who would use it to authorize a big money deal - not for daily use. I found a good many prohibitively expensive pens and few modestly priced calligraphy type pens, but they both had the same disposable ink cartridge that held a limited reservoir of ink.
In the end I went with a pen that I found kicking around the house. Years ago I picked up a set of drafting pens from somewhere and they turned out to be the perfect pen. Large ink reservoir that can be easily refilled from a bottle and since it was designed for production work they are easy to clean and maintain. I am still apprehensive about throwing it heedlessly into a backpack, but for daily use it has totally replaced ballpoint pens in my life. Frankly, with computers there is little use for pens, so why even bother with disposables?
Moral: If its made to be thrown away, how much can it be worth?