It depends if you are willing to take some risks , investing in dicesites seems to be very much comfortable nowadays .
or else you can go with some percentage of you holdings .
Investing my money in dice sites for me it's just lucky, i always lose on dice site even though when i win
that would never make me being rich in fact i was lose much than i win.
so far holding bitcoin itself is the better to save my money than gambling
maybe you are taking my words too literally,by investing i never meant to gamble ?
invest in sense add your money in the sites bankroll, be the house is what i meant.