I do my liquid myself too, i know how cheap it is, yet you still have a lot of vendors selling $20/$30 30ml bottles, this makes it a very high margin business (therefore tones of companies go in the biz). My point is that big companies with well oiled distribution channels would most likely sell the same good "premium" liquid at a fraction of today's price since their production cost would be extremely low and with volume they don't need to make sure a high margin to pay for the cost of operation.
Compared to other industries, who makes so much margin ? production cost c50 sale price $20 ? who does that ? only small companies with low volume, a margin of 20% for the producer and and other 20/30% for the distributor seems more standard to me.
What is a big company : One that supplier wallmart, target, ...