Reasons to attend (according to their website which is http://dcvegfest.com/): 
FREE admission 
FREE food samples 
The first 1,000 attendees receive a FREE tote bag full of samples and coupons! 
More than 130 vendors 
Beer garden 
Live music 
Cooking demonstrations 
Presentations from renowned authors and celebrities 
More than 15,000 attendees 
Kids’ activity area 
Since this is an outdoor event, leashed dogs are welcome! We have a Barking Lot so dogs can have shade and a drink

Attendees are (according to their website): 
Curious about veg-eating 
Shoppers interested in new companies and products 
Foodies who want to taste what’s fresh and new 
DC locals looking for a fun and free thing to do 
Health-conscious and fit 
Committed to helping animals and the environment 
Kids, parents, seniors, and students from across the DC Metro area and beyond!