$25 a bottle. Its technically small batch, but they bottled a lot of it. You should be able to find it just about anywhere that sells bourbon.
Don't ever pay more for something thats older just because its older. Bourbon is not like Scotch as far as the age goes. 10-12 years is optimal for bourbon. Anything older and it starts to have too much of a wood flavor from the barrel, IMHO. Don't ever pay more than $25 for something thats supposed to be better than the single barrel Evan Williams either. It isn't