Earlier quoted context omitted.
Same experience here. The first they scout you through your website, and act as if they had done some research, and drop the bait of free booth, then they "vet" you over Skype and later let you know you're a winner. "By charging big companies big money we can offer promising startups like you this opportunity for free" All you need to do is buy couple of tickets for 1500+ euros and the free booth is yours. Ouch. But…
Very few investors around... I disagree. We met a LOT of investors. The important thing to note is that they won't come to you just because you're there. You have to attract them in some way (or better yet: contact them in advance and have meetings already set up). I completely agree with the "shoulder to shoulder" thing though. It was very cramped :(
Granted, there weren't thousands of investors there, but my startup personally had a busy schedule meeting with them - that week (before, during and after the event itself) we had meetings with approx. 40 different investors.
Nowhere am I saying you should pay to pitch or pay to meet investors. I'm merely saying that whether or not an event is worth it depends on what you do at it (and beforehand) and that you can't expect it to be worthwhile just for showing up, because it won't. I found it useful, others didn't - I only wanted to shed light on why I thought it was useful and what we did to make it so.
NOTE: We also did NOT take part in the pitch contests.