jotape - you are right, however one little point - BA include all taxes, fees and surcharges in the price. If you go to BA and go through the processes of getting a quote, you will see that at the first stage, the price per way is shown with "Lowest price including taxes, fees and surcharges" highlighted in red, with an estimation of the taxes portion at the bottom of the page. Then, when you go through to the stage before booking, it shows the total price followed by a breakdown into fare, taxes etc.
Apologies for going off topic slightly, but I just noticed that BA are highlighting when they are selling the last few seats per fare class as you book. Don't know if it's new, but it's certainly a very good idea!