No, buyers agents are not more costly than seller's agents. As a matter of fact, here in Brooklyn, most of the time even the buyer's agent gets paid by the seller as a sub agent to the seller's agent. I have come across times when the buyer may want to pay their own agent (buyer's agent) themselves. The thought being that if the seller's agent does not have to split their fee with the buyer's agent it will further motivate them to make the deal.
In the end who an agent represents does not determine who pays them. The bottom line is that either party (buyer or seller) can pay the agent, the difference is that a buyer's agent has a fiduciary responsibility to protect the buyer's best interest and a seller's agent has the fiduciary responsibility to protect the seller's best interests. Who an agent represents and who pays them are based on the written agreement that the agent has with his or her customer/client. As per New York State law, all agents when working with consumers must disclose to all parties they work with exactly who they work for. There are even occasions whereby an agent can represent both the buyer and the seller, this is called dual agency.
Either way, you do not need to come up with extra money even if you have a buyers agent represent you unless you decide that you want to pay your own buyer's agent. In addition, if you sign an agreement with an agent to be your agent as a buyer, you may have an obligation to work solely with that agent and it would prohibit you from working with other agents as a buyer. So just make sure you know exactly what you are getting yourself into. You should discuss all this with your agent and/or attorney.
If I can be of further assistance please let me know. Good luck!
Mitchell S. Feldman
Associate Broker/ Director of Sales
Madison Estates & Properties, Inc.
Office: (718) 645-1665/ Cell: (917) 805-0783