Yes they are – especially more!
They really look to rip attendees off by charging more than they would otherwise, but what really pisses me off is that the conference web site then gives you a link, with a special code, so that when you click on it you are identified as the person to be ripped off!
Example: Tonight, an invitation to
4th European Semantic Technology Conference 2010
December 2-3, 2010
The conference website gets me a “special” rate at the conference hotel (Marriot, The Imperial Riding School Renaissance Vienna Hotel) at €120 for a “Guest room, 1 King or 2 Twin/Single” for the night of 3rd December 2010.
Perhaps not too bad, unless you go to the standard Marriot reservation site at http://www.marriott.co.uk. Then you get an offer for the same room for the same night at €103, taxes included, etc..
Yeah, sure, I’m sure there are all sorts of complicated explanations about reserving rooms etc., etc., but in the end it’s a rip-off, and I have seen it so many times it really pisses me off.