Holy crap yes
Case in point; The missus tried to book tickets online with Ryanair a few months back. She found a bargain, two tickets for about ten pounds each. Click! Into the basket they went. Then came the 'extras'.

Now, she's no fool. She was fully expecting a few additional charges. You're adding Airport Tax? Yes, of course. Click.
Plus fuel surcharge? Fair enough. Click.
Do we want priority booking? No thanks. Click.
Travel insurance? Nah. Click.
How many bags to check in? Let's say two. Click.
Crikey, £28 for two bags? OK, we can probably cram everything into one. Click back. Change to one bag. Click.
Blimey, eight pounds for one bag? Let's just put everything in our hand-luggage. Click back. Change to zero bags. Click.

Eh?

They want to charge us four pounds to check in NO bags?

Bastards.

Ooh, and Ryanair are also the worst lot for doing their advertising via news stories as free publicity. Remember that bunkum a few years back about how they were banning employees from charging their mobiles at work, "To make savings which could keep tickets cheap"? Plenty of tabloids reported that press release as news, without thinking to question it. Cue lots of free publicity for a tatty airline, despite the fact that the mobile-charging ban would save them about fifty pence a day.
(costas, Sat 2 Aug 2008, 0:57, Reply)