As a tech who works in the field I can tell you that at least 40% of people are using aftermarket inks and I would not be surprised if it was higher than 50%. I even have guys who go straight to 3rd party and void their warranty on day one because they want to save money on the ink so badly. Using the 3rd party inks will save you some money and there are good brands out there that have proven themselves as reliable. In fact, most 3rd party inks will save you around 40-50% on ink cost. However, you need to weigh that with the piece of mind you get with using OEM inks. I have customers who would rather pay the extra cash to know they are using the exact ink the machine was built for.
Let's say that you have a 2'x2' full coverage
sign to make. Your ink cost is around 20 cents per square foot. Your vinyl cost is about 30 cents. Let's say you laminate it for about the same as the vinyl. So right now your total cost per square foot is 80 cents per square foot. So the whole
sign costs you $3.20 to make. Now lets save 50% on ink cost. The
sign now costs you $2.80 to make. You saved 40 cents. You would have to make 1000 of these
signs to make $400 in savings. Not every
sign is full coverage so on some
signs you are going to have an ink cost of less than 20 cents per square foot. So the real question is, is losing the piece of mind of using OEM inks worth $400 for every 4000 square feet you produce? In my honest opinion, as a seller of 3rd party ink, is that if I owned and ran a shop I would run OEM inks and sleep well at night. Now if you are doing 10's of thousands of square feet per year I would suggest going 3rd party for sure. But for most smaller shops it's just not that much savings.