My only thought with the third-party cartridges was to maybe sometime in the far distant future when I run out of things to do, experiment with them to show why they don't flow as well as Canon cartridges. If Staples keeps up their current offer of taking ANY cartridge for $3 and I run out of my empty Canon cartridges, THEN I guess I could turn in these others. I really wouldn't wish them on other people and I know Staples isn't going to refill them, they have there own brand.
Also, thanks, fotofreak, for pointing out the reference to our forum on the eBay listing, I had missed it.