I am so glad that these older products are still avialable. the local office supply stores only carry popular products. I have an older printer, and I can't find supplies at any stores.
I have very satisfied with the HP ink cartridges for well over 15 years and I was pleased that the ink lasted forever. I recently started printing Word and Excel documents just using only the black cartridge, since I found the color cartridge was not necessary on these personal worksheets.