“If it makes dollars, it makes sense” was cited in June 2000 in a penny stock forum. The saying is usually associated with the boxer Floyd Mayweather, Jr., who said in June 2004 about a fight, “If it makes dollars, it makes sense.”
 
“If it makes money, it makes sense”—also associated with Mayweather—has been cited in print since at least 2006 and has been printed on T-shirts.
 
   
Wikipedia: Floyd Mayweather, Jr.
Floyd Mayweather, Jr. (born Floyd Sinclair; February 24, 1977) is an American professional boxer, currently undefeated as a professional. He is a five-division world champion, who has won eight world titles and the Lineal championship in three different weight classes. Mayweather is a two-time Ring Fighter of the Year (winning the award in 1998 and 2007); he also won the Boxing Writers Association of America (BWAA) Fighter of the Year award in 2007 and the Best Fighter ESPY Award in 2007, 2008, 2010 and 2012.
 
Mayweather is the WBC welterweight champion, WBA (Super) super welterweight champion, recipient of the WBC diamond super welterweight belt, current Ring #1 ranked welterweight, and Ring #1 ranked junior middleweight. He is also rated as the best pound-for-pound boxer in the world by many sporting news and boxing websites, including Ring, Sports Illustrated, ESPN, BoxRec, Fox Sports, and Yahoo! Sports. Mayweather topped the Forbes and Sports Illustrated lists of the 50 highest-paid athletes of 2012.
 
Google Groups: alt.invest.penny-stocks
dinky dao 
6/9/00
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‘If it makes dollars, it makes sense”
 
Doghouse Boxing
“Pretty Boy” Floyd Mayweather Drops by the Doghouse
Interview (Jun 1, 2004)
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DB: You have expressed your interest in fighting Arturo Gatti and a lot of critics think that you are calling him out because it’s an easy fight for you that will also make you a lot of money. What is your response?
If it makes dollars, it makes sense. That’s a good pay per view fight, so Gatti and I should make the fight happen. I can’t really say if it will be easy. I try to make every fight easy if it’s possible, but I can’t say if the fight will be easy for me or not.
   
Box News
Margarito targets Mayweather!
20 Feb 2006 16:11  
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At this point, Floyd’s trainer/uncle Roger Mayweather took the dais to address the issue at hand. “Look, the fight only makes sense if it makes money,” Mayweather stated. “Okay, this guy just scored a knockout over who? What’s his name? I don’t even know who he just fought. He’s a guy that I would have done the same thing to and I haven’t fought in over five years! You are all impressed by this? This guy (Margarito) has only fought guys with losing records or who have fought nobody. Who has this guy beaten? If the fight happens (Floyd/Margarito), it will only be if it makes sense. If the fight don’t make money, it don’t make sense.”
   
Doghouse Boxing
An Open Letter to Floyd Mayweather Jr
By Chris Ackerman, (May 4, 2006)
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The mantra “If it makes dollars, it makes sense” is real catchy and cutesy but by adopting that type of silly, juvenile prima donna nonsense you’re shooting yourself in the foot.
 
Doghouse Boxing
Vazquez vs Marquez III: A Fight For The Fans - Part II
By Gabriel Montoya (March 1, 2008)
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From neither fighter have we heard show me the money or if it makes dollars it makes sense.
   
Fight Hype
OBSERVE AND FIGHT: MAYWEATHER MAY HAVE JUST FOUND HIS NEXT CHALLENGER
By David Kassel | December 05, 2011
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Floyd Mayweather may have just found his next challenger. If it makes dollars, it makes sense, and Miguel Cotto makes sense.