I just got lucky. Just got me a hardly used CTL 22 E for only 250 euros. If that deal wasn't amazing enough, then the fact that it came with a longlife filterbag should convince you. Think I'll never have to buy me any of the standard bags.
Overall, a very nice vac, I'd have to say. This thing really sucks!
Get a dust deputy or cyclone. Or make one like I did out of a couple buckets, large cone, some plumbing fittings and some cardboard. I still have the original paper bag that came with the machine when I got it a year and half ago.