Lets say you have a source of unlimited supply of drugs. The kind of drugs which always will provide profits and sell without too much hassle. Would you rather:
Sell as much and as fast as possible and bail out after a few months.
Minimize the risk, add it as a long term income and vend as little as possible while still making a very considerable amount of money month after month for years.
1.
Selling small amounts is a lot of work. Do you want to be a full time drug dealer? Not me