So what is the conclusion now? Only 2 credible and currently profitable gambling websites to invest? That s not even close to sufficiency. Soon they ll be saturated and no investment needed. Crypto economy s been slowly outgrowing itself.
Something else will come up until it also gets saturated and exhausted eventually. You should just keep your eyes wide open and look for something new to pop up if you want to be among the first to jump on that bandwagon. Bitcoin itself was like that, but this doesn't mean that there will be no more opportunities to earn decent profits in the future.