I only attend the west coast and Vegas events though. I also attend the SES conferences about twice per year and hope to attend the next webmaster world pubcon in Vegas.
I have been attending - and speaking at - the Affiliate Summit conferences for a while now, and will be in Orlando next week to speak at the summit again. Highly recommended. Top quality content, no pitches, no salesfests, and over 1000 smart affiliates who you can learn from and JV with. And me. :-D
The conferences are an amazing learning experience. I am very fortunate that i actually get paid to go to them. Check out the conference calender at SEO Book. http://www.seobook.com/conferences/
I've never been to one - just because I've yet to discover the potential of affiliating. I'm sure I'll get there soon though, just need to concentrate and see what works best.
Shawn's Affiliate Summit is a must for those interested in affiliate marketing.
It provides a wealth of knowledge, contacts and networking.
WebmasterWorld Pubcon is great if you are more interested in general webmaster and SEO topics. Lots of affiliates go too but sometimes there are not many AM related topics.
yeah i may try to get out to the vegas 07 one also.. and I am thinking of hitting the Adtech NYC/// Thats East Coast so I am more apt to attend. I have been to CA many times and cant seem to stand it..lmao