I'm afraid it seems if you want comfort then one way or another you will have to pay for it.
No incoming from this direction.
I agree with you and I travel C on all flights of 3 hours duration or more.
361 on an A300 does seem sardine like, I have been on an A300-600 confirgured for about 100 less, in two classes and it was comfortable.
I tend to agree with Avitor, but when I suggested on a thread that I'd have no objection to paying a small levy to fund two seats for the occasional very large person, the reaction was very negative.
It seems the people who complain the most are the ones who do not pay for the comfort.