I prefer to gamble since I have only small amount of money cause in my opinion, investing with small amount of money is just a wasting of time. I invested my money at a gambling site in the past, but after couple months I saw my money growing so slow then I divested it and use it to gamble.
Whether you will invest small or big it is still depends on you on how you will grow that amount and with your belief that it is just a waste of time if you will invest small amount.
For me, all things are coming from small things and if you will work hard for it that can be a lot of bigger and as an investor you are the one that will work for it.
And with your investment, investing in bankroll casino's is guaranteed but that's the reality with it, the growth is slow.
That's why you need to have some other types of investments and don't always rely to one source.