but i think it is not such an easy task to select the right altcoin whose price is expected to increase more. i think you need a proper knowledge about the altcoin so as co select the right coin in the right time.
Proper knowledge for any investment is needed. In this case we are talking about investment in a gambling site not in altcoin . If it is an investment in a gambling site then you will need to do some research first if the site is worthy to invest or not. If the site is not worthy then even high amount is useless
It is what you need if you will invest into alt coins, knowledge and doing some background study is really needed. And as you mentioned, it's just the same with gambling sites, but I don't think it is going to be profitable or you will have big return if you will only invest small amount but with price increase, I guess that's satisfying.