That's a big amount of money if you will try to use it in trading, but if you will just invest it in a casino I believe you need to wait for a longer time before you will be able to meet your goal. Investing in gambling sites are profitable but not lucrative when you do not have decent money to put it.
Think of that, you better increase that amount in trading then invest in casinos afterwards.
You are giving good suggestion. I also think that he should try to do trading than gambling investment. But i think he don't want to take a risk, that's why he want to do investment, as he said he has no time. Actually people feel easy when they start trust-able investment, because they don't want to do struggle and hard working, and take risk.
If you mean in gambling at such a low is inappropriate if a person does not know how or does not want to lose their money. Both for trade and for gambling, you need knowledge, an important role plays the role of luck, but if there is a real project for investment, then why not try it.