Bitcoin / Bitcoins / Crypto Currency

Out of curiosity do you think that market traders who buy fruit and veg from a wholesaler at a low price and then try to sell them at an increased price in local markets before it goes off are gamblers as well?

Is it not a gamble? There's no certainty they will succeed.
There is a likelihood. That's where risk assessment comes into it.
Before the GFC, bankers removed the risk assessment reins in order to maximise profits. It probably worked for some of them...