That is a great question because it is not something I have ever really thought about.
My main issue with the ASIS "training" is that it is so hit or miss. For instance is the person leading this session a sales guy hired for the event or someone with 25 years of experience in the field that has some good insights on the subject being covered? Another example is the ones that try to cover these 15 ideas/insights/programs/devices/whatever in the next 45 minutes and I am only interested in one of the things. Or better yet the ones like Preventing Workplace Violence that is five minutes of good actual info with the rest being how their software/device can help. Well, I want to know what I can do or look for to help prevent workplace violence without having to buy your device...... Even if for example the workplace violence thing is labeled as being led by a FBI agent with 35 years of experience in investigating workplace violence who wrote 17 best selling books and trains fortune 500 companies worldwide in how to deal with the issue it most often turns out they are now retired and are pushing their new consulting company or worse just regurgitates another run/hide/fight slide show.. Even if it is a knowledgeable person the 45-90 minutes they have to cover something normally isn't enough. If it is someone who shouldn't be up there talking the 45-90 minutes feels like an eternity.
I do like some of the round table discussion type formats they have with either industry leaders or leading end users. I don't really see those as "training" though, but i sometimes come away from those with some actionable info. I guess to me training that is worth my time is in-depth training on systems I currently use or am interested in using. Not just the quick one hour this is what the device/program can do type of thing, but really digging in to it using examples of how it is being used by people who actual use it. I realize that can be difficult during events like this because of the time commitment required, etc.
Basically I don't go to or send my staff to any training that does not have specific agendas detailing what will be covered and what attendees will walk away knowing. The sessions at ASIS just aren't set up for that and to pay anything more than $100 for those sessions is just not worth it to me.
Kind of train of thought rambling there, but hopefully it makes some sense!