I understand what Dad04 means.
My son's friend was a masher, when it went over the fence it was in the next county. He broke county records one year. He also had a rocket for an arm. Not a lot of scout interest as a senior (and there were plenty of scouts at many games). He didn't play his position well and he got slow, and he developed a man's body by 18.
You see that often here. Think about the first round position players drafted here from Florida. Eric Hosmer, Yonder Alonso, Jemile Weeks, Buster Posey. That's the type of player that you have to be to get mega attention here in Florida and play against the best competition (in HS and college). Actually, that's the type of player you have to be anywhere to be considered a very top prospect.
Scouts are everywhere in FL, they notice everyone, but because you get lots of attention, doesn't mean you are a top prospect.
Which brings up another point, all scouts see different things in different players. Some scouts are better than others at their job. The scout is also a salesman, he has to sell you to his boss and his boss to his boss. If you find a scout who really beleives that you are special, different, you are in luck and you will go far.