Another good point, from
this posting in the Hardball Times:
Armando Galarraga will probably be more remembered for this, much like Harvey Haddix was for his 12-inning non-perfecto, than he would be if he had just had a "normal" perfect game. Assuming that Bud doesn't do anything really stupid, like overturn Joyce's call, this game will live on for years to come as "the Galarraga game".
Otherwise, it might just be a footnote in the history books as a freak event by a journeyman pitcher, much like Len Barker's gem in 1981.