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davidjohnson6: No I wouldn't go for a day. But I'm sure they could attract a businessman(small company and the boss feels the travel expenses in his own pocket) from Weeze that needs to go to Barcelona for let's say 3 workdays.
Even if it does provide only a few extra passengers per flight there's no reason not to do it.
As for the Web check-in only, printing at home is no problem, but if you go away for longer then 2 weeks you will have the hassle to find a printer somewhere abroad. Might be easier not to fly Ryanair then.