Not over 150.00 bucks myself.
A friend of mine was gonna pay 500.00 for a bottle of ref-v 50cc liquid.
I stopped him and the guy admitted he paid like 150.00 for it.
I seen on price lists usually 60.00 to 90.00.
I never bought that but know its pretty cheap on black market, local is different
If you know a farmer who has horses can get very very cheap, its not expensive as the quality is not that good I hear, but can't say cause i always steered away from it.
Some pay lots when they don't have access to a good source.
I seen guys pay $25.00 for 1 omona amps locally!