Not necessarily more, but it would require a different distribution. Money would need to be spent to relocate the prisoners. Congress has blocked that reappropriation.
Quoting Wikipedia:
On May 20, 2009, the United States Senate passed an amendment to the Supplemental Appropriations Act of 2009 (H.R. 2346) by a 90-6 vote to block funds needed for the transfer or release of prisoners held at the Guantanamo Bay detention camp.[14] President Obama issued a Presidential memorandum dated December 15, 2009, ordering Thomson Correctional Center, Thomson, Illinois to be prepared to accept transferred Guantanamo prisoners.
On January 7, 2011, President Obama signed the 2011 Defense Authorization Bill, which, in part, placed restrictions on the transfer of Guantanamo prisoners to the mainland or to foreign countries, thus impeding the closure of the facility.[17] U.S. Secretary of Defense Gates said during testimony before the US Senate Armed Services Committee on February 17, 2011: "The prospects for closing Guantanamo as best I can tell are very, very low given very broad opposition to doing that here in the Congress."[18] Congress particularly opposed moving prisoners to facilities in the United States for detention or trial.
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In short, congress passes bills to prevent Obama from closing Gitmo. Obama signed one or more of those in order to balance other political agendas. The annual Defense Authorization Act is a particularly politicized bill that congress is known to use as an offensive weapon.