Hey, Kristiano!
I was going around the Forum and saw that old topic that should be nowadays a bit more on the front.
The spread is just normal now, not as it was last year during this time.
About the Bitcoin exchanges vs the Bitcoin trading with CFD, I really do not like to say it but I can say to many traders: I TOLD YOU SO!
Unfortunately, millions of people lost their savings on the exchanges, however Bitcoin trading is for the smart traders.
Cheers,