I went there 2 years ago. The exciting part is that you can bring your pet -and probably get free food for your pet too!- Some of the booths offer FREE food, but others require you to buy coupons and use them to buy small meal. I forgot how much the coupons were (I guess it's $1=1coupons and you can buy food for 5 coupons). They also had liquor section, but again you had to pay for a glass of wine or vodka or whatever (3-5 coupons if I'm not mistaken).
Oh yeah... you have to pay entrance fee too... - unless you have friends who are volunteering there :P