A local machine shop in Rolla MO buys VP110 in bulk and sells it for $8 per gal. When I lived in north east OK a NAPA auto parts store sold Sunoco 110 in sealed 5 gallon containers for $45 each. It sounds like you are getting gouged at those prices.
When did you last confirm these prices? As you are surely painfully aware, the cost of fuel has skyrocketed recently. I have checked several local retailers and the prices are consistently high. When I first bought SEF94 last year it was something like $9/gallon but was $16 at last check (March). I just bought another 5 gallons of C9 last week and it's still $12/gal for a 5 gallon drum.