People who say no are most likely thinking in a rational sense (i.e. it may be too far for socal MB player base, posibly not enough people to turn a profit, etc.). It's kind of silly for people outside of the region making a vote (if that's happening). Would it be awesome that they get it? Yes. Would it be smart if they get it? Debatable.
There's also the inevitable rehash that seems to happen more often in this series than any other series, meaning the arcade will likely have to buy another board just to keep up to date. Then again, they, French Bread or whoever developes the series (I honestly forgot), could always do what Capcom is doing with SFIV and release patches instead of new, actual boards with each new release/fix.