I had been paying approx $21 or $22 or between $20 to $22 for 10% Nitro. Back in my country which is past, I used 80% methanol and 20% castor oil, no Nitro. Most of the engines specifications tell you which fuel to be used. I had been introduced to this hobby shop at Willis, TX by my Mentor.
http://www.newcreations-rc.com/
I was literally shocked to see either Morgan's Omega fuel or something I'd confirm it not the other one I used to buy from LHS, the price for 10% Nitro 1 Gallon with Tax is $15.30 and I was like glowing like a glow plug wow, I can buy this and save up to $5 to 6$ easily, this fuel is sure a bang for the buck for me. Also you may get 3% discount if you pay cash.