My son has travelled extensively playing AAU and select team ball since he was 12, and has attended 1 PG showcase.
He has a teammate who's never played outside of NH but has attended 2 PG showcases.
Both boys are 6'2", 170 lbs. Son is primarily an RHP who occassionally fills in where needed (1st, 3rd, OF and recently short). Teammate is mostly a SS, but fills in as an RHP.
Both boys are '08's and are receiving letters and emails. Only one school has contacted both of them.
No other player on their school or fall teams has received anything from anyone.
That doesn't necessarily mean anything - its just an observation.