Well, I find it extremely easy to avoid paying out money once on board a flight, but to actually get on a Ryanair plane costs a fortune with all the "extras" you can't avoid.

I live in Scotland and travel to London fairly often, with three kids in tow. Although Ryanair's flights are often extremely cheap on the website, by the time you've added in the extras, it costs much more than it does by train, and by the time you've got to and from the airports, through security etc., it takes far longer.