Big time .... you pay most likely 300 bucks for a set of 9 Epson cartridges, or $ 1.28 per ml. If you buy the initial setup from inkjetmall, you pay around 370 bucks (including freight to Calgary, which is about 70 bucks), for a ml price of $ 0.35. Almost a quarter of the cost. Once you have the cartridges, you only buy the ink, which will further reduce your cost , and the cheapest way would be to buy 32oz bottles, which will bring the cost of your ink down to ~ 14 cent per ml.
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