I think my real point was that instead of raising the ticket price by $100, some airlines have eliminated free baggage on some tickets. So people thunk they are getting a great deal and then get pissed when they realize that they have to pay at check in time.
From a ticket price perspective you can not really make any valid comparisions since prices change randomly. A few years ago my divebuddy flew business class to London England because it was cheaper than economy - on the same flight! On our last trip to bonaire we flew 2 different routes: Toronto - houston- bonaire and returned bonaire - newark - toronto. All due to prices being more than $500 different to use the same route both ways.
Air Canada baggage allowance is very confusing since they have many many levels of tickets, not just business and economy. They have Air Canada and Rouge airlines. Then there is Economy Tango, Economy Flex, Economy Latitude, Business Class and business Class Flexible. For me, these all get mixed with my Altitude status which causes even more confusion.