The Margarito Bandwagon

I don't understand why a fight with Mayweather specifically is like a MUST NEEDED thing. I can think of plenty of other boxers that would be a good fight. For example, I think that corrales-margarito would be a great fight because it is two power punchers trying to see who can knock out who. That would be a GREAT fight because it would be action packed. Then Margarito can fight Castillo to see if he can take a true brawler and a cheater. Castillo can hold and hit Margarito all night and it would prove whether or not he can fight that kind of person. After these fights and even a fight with Judah, THEN he can fight Mayweather. He would have a much better resume, would have beaten the fighters Mayweather has beaten, plus get a better name out for himself. The fight would be suspensful and breath taking as long as Margarito can dispatch Mayweather's previous opponents. I would much rather see that and be excited about this fight than see Margarito attempt to prove himself against Mayweather when he can be a exciting threat to Mayweather if he takes it slow.