Printer ink cartridges are costly, sometimes in upwards of $30. Many companies sell kits to refill ink cartridges or remanufacture ink cartridges for a low fee. Although many OEM manufacturers of ink cartridges suggest remanufactured ink cartridges aren't a good investment, many opinions differ. In general, remanufactured ink cartridges help save the environment because ink cartridges' casing are recycled instead of being disposed of in landfills.