Here's an interesting difference between infosec and physsec that highlights a failure to evolve. One of my talk proposals was accepted for the ISC2 Security Congress 2012 in Philadelphia this September. A couple weeks ago, I received a rather startling template email from one of the event coordinators. As a speaker, I was being offered a day pass to the event for the day I was speaking, which in reality translates to maybe seeing 2 talks. To say the least, I was taken-aback, since the norm in the infosec industry is to grant speakers a full conference pass. I mentioned this ridonkulousness to a few people directly, as well as in passing on Twitter, and was contacted by a rep from ISC2 to explain the situation.
Quite simply, the situation is this: ASIS International does not offer speakers conference passes. Period. End of story. Apparently they never have in their 58 year run. ISC2 is co-locating their event with ASIS 2012 - at the request of ASIS, it should be noted - and thus is subject to the ASIS rules, no matter how outdated and insulting they might be.
Now, mind you, ASIS doesn't charge as much as events like RSA do ($875 early-bird reg for members, $1125 for non-members), but still... this is a very large event (as big as, if not bigger than, the US-base RSA Conference). In this day and age - especially with the economy as it is - I find it egregiously disrespectful that a major conference would not comp speakers a full pass.
So, there you have it... ASIS is unwilling to evolve their policies and show their speakers a little hard-earned respect.