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you have to deposit money before you want to buy something
not in bitcoin.deQuote
Also, when you sell, the money gets on the exchange too, and then you can withdraw it (I guess). Am i correct? If this is like this, see the diference?
in bitcoin.de the money goes directly to you when you sell. The buyers sends via via bank to your account.Quote
The question is: In bitstamp, gox, bcte etc, when you sell btc,
I don't know, I never used them.Quote
So Bitcoin.de is useless for day trading as I expected, it's like localbitcoins.
maybe not. You can buy many times a day and sell many times a day, but there's a delay in receiving the money.
So you send it immediately (you have I think one hour) but receive it a few days later, so you are "out" with the money you trade for a while (because when you buy you don't own the BTC until the seller confirmed the fiat arrived and because when you sell you have to wait for the fiat)
In terms of pricing its fine though: you pay at the current rate, no delay with that.