I remember them being crafty, but I have to admit I was surprised by the level of tactics ... that is to say, what they are still allowed to get away with given European / UK consumer law.
Not to mention that a 20kg bag and hand luggage cost me significantly more than the fare itself. They even had upfront "package deals" that would have actually worked out more expensive - bundles of nonsense benefits.
In Australia most of this kind of borderline deceptive selling has been stepped on, to the point that you hardly see it any more.