If that is the case then it makes things slightly more equal (outside of the btct.co withdrawal fee and discount to 0.5% sale on BitFunder based on trading volume). But I guess let's the market decide. 
I still don't get how you come up with 0,25% to 0,5% with BF. There's a 0,5%-1% fee on sales, so a flip will include that no matter if the buy is 0%. They say in the FAQ that if you are a day trader, you can get the fees down as low as 0.25%, but for most small to medium investors, that's not going to be an option.
Do a ฿100 buy and sell, regardless of time span, and you'll be out between ฿0.5 and ฿1 on Bitfunder, but always ฿0.4 on BTCT. I can't see how that's even; BF is at best 25% more expensive and at worst 150% more expensive.
.b
I myself am in it for the long haul due to the kickass dividend. 
