Since this seems to be a super hot topic, hopefully I can help a little.
We ate at Crabbys last night and from what I remember, it was $24 for a full rack of ribs, $17 for a half rack and $9 for 1/3 a rack. They also had pulled pork and BBQ Brisket either 1 lb for $15 (90% sure that was it) or on a bun for $12. You could add Coleslaw & Beans to make it a dinner for $4. Maple Cornbread you could add for $3 and the last item I remember was the Smoked Italian Sausage on a bun for $8. There were also rib/chicken or just 1/4 chicken combos that I don't 100% remember but I believe they were also around the $15 - $18 price point.
We were right next to the Texas BBQ vendor as well and they had their Full and Half rack of rib prices posted where I could see. They were about the same, I believe a dollar difference from Crabbys. They also had like a huge Texas Dinner you could get for $45 that had chicken and ribs and a couple other things.
You could buy Bottles of Water for $1 right around the lines for the food and they had the Batchery there as well so save money for ice cream if you can
Beer I'm not 100% sure of, the beer tent was super full (I heard they are adding more tables today) and we just went and ate on a park bench.
The food was AMAZING. We all shared some ribs and I had the Grilled Italian Sausage with Beans and Coleslaw and the cornbread. Man... that cornbread. Drool.
Hope this helps

It was honestly so great to see so many people out last night and hopefully a lot more today. This kind of thing is awesome for Brandon so hit it up if you can