Yeah, but Scott, how many times can you possibly re-manufacture toner & refill ink until the cartridges become completely useless due to wear & tear? I wouldn't even bother considering re-inking ribbons just because it is far more economical to purchase a new one & the process is extremely difficult & time consuming. Besides, the wear on the ribbon caused by constantly passing through the print head will show drastic degradation in print quality, even after it's re-inked. It's no different than playing the same tape through a VCR over & over again.
Bottom line- once these manufacturers call it quits, that's it. But I doubt that is going to happen anytime soon, as the majority of these printers are re-badged HP & Canon models, and they still produce toners for printers that have well passed their product cycle, so there's nothing to worry about.