RailsConf was a blast -- I'm so glad I was able to go... thanks to my employer for paying my way. Giving a presentation was very exciting, and the great feedback I got is appreciated. It was fun to meet Tobi of Shopify and 'talk shop' a bit. :) I also got to meet the first person who purchased my Rails e-commerce book, and that was cool (he even gave me some great feedback on material to include in the next release of the book). It was so much fun that I can see the appeal of being a professional speaker, except for the travel that that would require.
I have put up my slides from my presentation, but I don't know how useful they will be without actually hearing the presentation, since most of the content was in what I said, not in the slides.
Most of the other presentations were fantastic -- there were only one or two where I felt like my time would have been better spent elsewhere. The people I met were also fantastic. It is such a pleasure to be a part of this community. I would say the trip was definitely worth it, even if would have had to pay my own way.