The Obamas' highly publicized and polarizing vacations may cost the First Family even more, as voters appear to be disheartened by their extravagance.
'The American people can ill afford to keep sending the First Family on vacations around the globe,' Judicial Watch President Tom Fitton said.
'There needs to be greater sensitivity to the costs borne by taxpayers for these personal trips.'
In 2010, Mrs Obama visited the Spain's picturesque coastal towns, shopped, toured and even had a lunch date with the country’s King and Queen.
Her every move was highly documented and scrutinized by the press, which called her trip 'tone-deaf' during tough economic times.
'It is hypocritical for President Obama to fire GSA officials for wasteful conference spending, while his family went on a luxury vacation in the Costa del Sol Spain that cost taxpayers nearly half a million dollars,' Fitton said.
The New York Times previously reported that Mrs. Obama brought along her daughter Sasha, 'two friends and four of their daughters, as well as a couple of aides and a couple of advance staff members.'
The five day trip cost at least $467,585, according to Judicial Watch.
That tab is based on just 17 hours and 15 minutes of total flying time.
The White House said that the First Lady would reimburse only the equivalent of first-class commercial tickets for herself and her daughter Sasha, since the rest of the seats were occupied by Secret Service.
Her friends flew on separate commercial flights, the New York Times reported.
The 15-member flight crew stayed at Tryp Guadalmar, a nearby motel where group's lodging cost was $10,290.60 and car rental costs were $2,633.50.
In addition, their food cost was $876.30, which included an American indulgence of $57.68 for four bottles of maple syrup and a package of pancake mix.
Secret Service records, meanwhile, show that the costs to the agency for the vacation were $254,461.20.
This total includes $26,670.61 for a chauffeur tour of Costa del Sol and $50,078.78 for a travel planning company SET P&V, S.L.
Though her trips may cost taxpayers money, they could also cost President Obama his job.
And they well may be - the First Lady revealed today that one of her secret 'fantasies' is to sneak away from the Secret Service's watchful eye, a move that would no doubt cost taxpayers a pretty penny.