Just my opinion, but you get what you pay for.
This is why I don't "do" low cost airlines - because you end up paying another way!
Funny, because one of the only drunk air-rage stories I remember off the top of my head involved a first class passenger on a British Airways flight. One suspects he was a very high cost passenger, who was interestingly enough found not guilty by a jury. What was the airline's response? Come back any time!
But let's not let prejudices affect the discussion, not that there has been any shortage of these.