Even when I started making way more money I've stuck with the can of ground coffee.
The reason is cause most days I just down the cup really quickly, black. Or with a little cream.
I don't savor it. To me, coffee is a utility. Not a lifestyle.
I just need a couple of cups to stay awake and do my job.
But after that I don't touch it for the rest of the day. Not if I want to fall asleep at a reasonable time anyways.
Every now and then I will pay for an expensive gourmet coffee but that's not the norm.