I agree w/ TR 100%! Don't just go to showcases just for the sake of going. It can cost 1000's of $$$$ and get you nothing.. I took my son to a showcase sponsered by a big name company and it got him nothing! Except $300.00 less in MY checking account. Choose your showcases carefully .. make sure college and even pro scouts are going to be there and make sure it's not just a money maker for the company. Getting letters from big name schools is great but if you can't qualify there then what is the sense.
If your ability is'nt good enough to play there .. why go sit the bench for 4 years? Parents can do an awlful lot to find the perfect fit just by researching the internet then getting in touch w/ the coachs from schools that might be interested or schools that your son is intrested in. Almost every college has a form on it's webpage for interested student althetes. Have your son e-mail them.. You will almost always get a response.