Scunner, you are dead right, the airlines want you to do everything, next thing they will think of is using drone planes ie no pilot get your own drinks from a pay-as-you go coffee machines with on board computer instructions to the customer, some airlines already do this with the onboard emergency video.
With regard to easyjet pricing on baggage only(not flight prices) please see the following:
If you booked a flight last Sunday on the easyjet website with a flight from Gatwick for the 12th September 2011 to Dalaman until the 1st October 2011 the baggage rate was listed at £11.00 per 20kg hold bag, book the same flight today and its £22 per bag, do the same dates and fly to Izmir from Gatwick (new service by easyjet starts in may)and its £18 per bag so looks like easyjet are already applying the new mileage rate now.
It should be noted that anyone who has booked a flight already with this airline then the price should remain the same as paid and it should not go up, if they do ask for more monies the they are in breach of contract, and you can get your money back in full.