Go back through the last five drafts and count the number of impact-level point guards the league has absorbed. The list includes a league MVP, Olympians, guys who played in the NBA Finals, rookies of the year, one of the league's best shooters, a few of its top pure athletes, plus one undrafted sensation that took over the league for a spell:
Jeremy Lin and, yes,
James Harden (he is listed as a shooting guard but really plays like a point guard).
This list doesn't even include Tyreke Evans, who won the ROY award as a point guard before being moved off the ball later on. It's quite a list, representing both the present and the future of the point guard position.