I wasn't able to make this year's VueConf US (even though it was in my backyard), but luckily, some of the videos from the conference are online:
While at the site, take note of the "Notify me" button on the right. You can sign up there to be notified when new videos are added. From what I know, all the videos will be available eventually. Plus, if you sign up, the fine folks at Vue Mastery will send you a Vue PDF cheat sheet that is really freaking nice:
It's two pages in length and I'm probably going to print it out for my home office. Actually disregard what I said above. If you don't feel like signing up for updates, you can still get the PDF here: https://www.vuemastery.com/pdf/Vue-Essentials-Cheat-Sheet.pdf. As I said, it is definitely worth downloading!