It has been noted here on several occasions that you do not have to attend a PG event for scouting reports.
Their detailed reports can be seen online for a fee, same for most companies that do the same (ex. Baseball America).
I saw two reports on my son before the draft, MLB's
and Baseball America's
. Just a few days ago I saw the report on my son by PG
, compiled by Alan Simpson (I think).
ESPN's scouting reports are compiled from the reports that are compiled by some or all of the above.
A team that is considering drafting a player in early rounds usually will have the drafting scout make several visits, crosscheckers, scouting directors, etc. I am not sure how much reliance is placed upon reports from scouting services. Maybe PG can elaborate.
On a positive note, I do know that coaches and scouts that have not seen players, will rely on these reports for further consideration. In other words, if a college coach from the east is interested in a player from a different geographic area, he needs a set of reliable eyes for recommendations as to the abilities of that player.