That's why I was so angry with them - if you do a naive calculation of the average cost for an article per magazine per issue per year, you come up with roughly 3€ per article. Which means that it would have been more than a 1000% markup in my case.
I could've understood a 100% markup because I'm not a subscriber - but this? That's racketeering in my book.
By the way, I also contacted them to ask them about the logic behind that huge markup and the 24-hour access restriction. They actually answered. Just the latter question, though, with some kind of hogwash about the difficulties of providing long-term access and its costs. Yeah, that extra table enabling a many-to-many-relationship in the database, that must probably really take up some space!