Passion Lube is $21.22 for a 34 ounce bottle. That’s .62 cents an ounce. The 55 gallon drum is $909. That’s .12 cents an ounce. Way better deal. Based on a 2 ounce “serving”, you should be able to get off 3 times a day, every day, for over 6 years. If you plan on 7000 orgasms or more, or prefer extra lube, I’d get two.
I haven’t used it, but based on the math, it seems like a good deal so I give it 5 stars. ;)