Ink is so expensive that last time I ran out, I went and bought a new printer, it was cheaper.
They've started selling printers with "starter" cartridges holding much less than a refill.
Don't get me started on HP anything.
HP cartdridges at Staples for my HP printer are $19.99 each for black and color.
I don't buy mine at Staples. I buy mine online for the knockoff carts.
$5.95 each plus $4.00 for shipping. They work just as good. Problem solved.
"My Momma told me...you'd better shop around."