The one I’m drinking right now is 6.76€ and the cheapest one is 1.28€.
First of all - what a price difference. Secondly, it’s actually not bad. It does have that faint “cheap coffee” taste, but after a few cups I barely notice it anymore.
The real question is: is the tradeoff worth it? Do I give up a few percent of enjoyment on every single cup just to save the equivalent of a month’s grocery bill yearly? I’m not in any dire financial spot - frugality is basically a hobby/lifestyle for me at this point - but it’s getting rarer and rarer to find ways to pocket savings of this level anymore.
Point of diminishing returns. If your enjoyment of the coffee ritual takes a larger hit than the dollars you’re saving, it’s not worth it.
The cure shouldn’t be worse than the disease, as they say.
You can’t really reduce enjoyment to a quantity, making comparison difficult to pin down in any precise way.
But that’s OK - I find there are still indicators you can look at, e.g. for a while I tried living only with cold showers, and I started to struggle to feel like getting out of bed in the morning. I realized my mood couldn’t handle the removal of hot showers from my life, at least not at that point in my life.