People still buy supermarket instant. I think the problem is actually that people don't know what good coffee tastes like, nor do they care.
I do know how good coffee tastes like and would say: It's not worth it.
For you.
Please add that last bit, as it makes the difference between a statement and an opinion.
I am happy for you that you tried things and decided they were not worth it for you. At least you took it a step further than a lot of people who hold such opinions about speciality coffee. But I think you should open your mind to the idea that the people who think it IS worth it are not just pretending.
e.g. "It makes decent espresso and the money, time and mental energy for getting a slightly better espresso through a more expensive machine is just not worth it to me."
If you think that time, money and experience can only produce a "slightly better espresso" then I will just say you are not experienced enough to make such a claim. Rather than accepting that maybe to some there is a big difference, you call them snobs.
Whether that's because there is no coffee or brewing method out there that, when served black, would satisfy them, or because they've just not had the chance to taste what they would consider good coffee, of that I am not sure.