Should repeat sellers be paying full commissions?

[Larry Flanagan]

If i am selling a house every month or two should I be negotiating a discounted commission?  I'm having to pay up for deals on the front end so it seems like the realtors are making as much as me on flips.  I dont think there is any way or reason to get around the 3% to the buyers agent but a lower flat fee on the listing side seems more realistic for their time & effort.