Cloud mining nowadays is a scary "investment" if you would ask me because apparently, the operators of this kind of service never show their identity to their peers and investors. Also, they can easily create some "proofs" that would help them hide their true intentions by showing pictures of their "mining hardware". Most of the time, this cloud mining sites turn out to be a pyramid scheme, giving some "mining revenues" to their investors as long as it is "profitable" and after some months or a year, will turn out to be a scam and poof! All coins gone.
Dice site investment on the other hand, is also risky but is less scarier compared to its cloud mining counterpart in terms of investment. Dice site could actually give you some profit over time unless a lucky player shatters the whole house within a single moment. The house edge is proven to be unbeatable over time and the house always wins. But there are times when the house loses to a single entity that could cripple some investments on it.
Whatever the case, still your choice in the end.
You're right but there is no way to be sure that a gambling site won't run away when it has accumulated enough funds. Bitcoin investments are always risky because there is no central authority regulating the funds and there is also no legal agreements.
I say both have equal risks but there has been less instances of gambling sites running away with people's funds in the past as compared to so called Cloud Mining sites, so I guess they can be considered a little safe for now and if a Gambling site is running a legit business than it will provide better profits in long term to it's investors.
