Oh, the best part about the expo is that it is FREE! Runners as well as family, friends, complete strangers, etc can all have a great time at the Disneyland Half Marathon Expo and it doesn't cost a cent (well, of course unless you purchase things).
Personally, one of my favorite things from 2015 was taking the 'Walk in Walt's Footsteps' tour. It was a wonderful way to spend the day with Momma K, ride a few rides, and learn more about Walt and the history of Disneyland.
Remember how I mentioned talking to folks at the expo and making new friends on race weekend? Well, did you know that every single one of the people shown below minus Momma K I met at races and through running groups over the past few years? Some of them I see a few times a month, some of them I only see at runDisney race weekends, and some have become my best friends and friends for life. I love my running Ohana and all the memories that I have created with them and will continue to make over the years.