I agree with the counterpoint that film was always an expensive engagement - even way back when (1970's). Of course, I was a youngster than and didn't have any dough... and relative to the dough I had.... it was expense saved for travel or important occasions and not an everyday thing. Now that I do have dough, it seems odd to complain of the expense. And as a hobby relative to golf (yes, not a sport but an avocation for some) or yachting or skiing...still cheap. Relative to the cost of divorce - whether from photography or from a spouse.... cheap. So as I see it.... expensive is not an absolute but always a relative term. It's like performance and implies value judgments. Relative to historic prices? Sure, if we're comparing nominal prices. But then my grandmother used to complain that a loaf of bread used to be 3 cents, and didn't know how to compare against inflated prices. And yet as much as economists might wonder whether comparison of bread in 1930 to 1970's might involve completely different types of bread, it's probably fair to suggest that E6 film in 1970 versus E6 in 2018 is probably a lot closer as a product. Inflation has never been uniform across ALL products but varied according to the degree of competition, the raw materials content, the labor content, and distribution/marketing costs.... as well as just brand power.
Today we always look at these things relative to the variable cost of digital, and sure, E6 is more expensive. Relative Total Cost of E6 film (film and camera) versus the same for digital is a comparison I no longer make as both involve too many assumptions about shooting both.... and I find almost none of them hold up. I can't even estimate the "relative environmental impact" other than to quote others - and I'm not sure they know what they're talking about anyway. Relative to the cost of shooting B&W film? Not today. B&W and C41 using a local lab are roughly about the same for both in my case.... but if you process yourself, C41 chemistry seems a bit more expensive per roll.I haven't tried E6 and have sent it out mostly.... but relative to the thrill I get when looking at a 120 transparency when it comes back from the lab? Wow! Worth it! Would I want to make it a regular thing? No. Fact is, I find Portra 400 suits me just fine and costs less. So I guess I can agree with the OP... in a general way as well.