This is all about quantity and in the future there will be a massive adoption of the future and that makes it even more awesome for the bitcoins and gambling sites.
You are only partially right about quantity. Because from what I know it is extremaly easy to create and operate bitcoin gambling site (at least compared to standard FIAT based gambling services)That is the reason we have so many cryptocurrency casinos around. But in the end people will pick their top services and there will be only few really good casinos left.
It seems easy but there is also a lot of cases whereby even bitcoin top platform exchange also got hacked and are in serious trouble.
Most of these attacks could have been reverted if owners weren't so stingy about providing additional money for security, backup, cold wallets.
And some of these 'attacks' were even fake - and covered exit scams of untrustworthy businesses.
This is a big issue ,and its better to collect 1 btc daily as fee then run away with 2000bitcoins in a day using the hackers attack to justify,but there are people outside that dont cares as long they achieve their magical number they scam the user instead on focus into give the best experience and be able to work out to grow their income ,possible making it reach 3-5btc daily with some hard work .
The market has every sort of business and people. In real or virtual market, it's up to the user to judge and trust the bookers. Its easy to start a business but difficult to gain the trust. People who falls for spammer deserve that for their choice. Gambling is a risk, in every sense.
