Where are you getting your numbers 4-5dollars difference? It is $3. Even if it was $5 who is going to go to the trouble of transferring exp 10btc -100btc from stamp to btc-e for a potential $50-$500? Moving $2370- $23,700 for $50 - $500. Nope not me mate, after fee's it is not even nearly worth it and there is a $3 'at the moment'. $30-$300 minus the fee, to much effort and risk for little reward.