I set official invites even though all of our guests booked after they got the std. I did it more as a keepsake and a reminder for anyone that hadnt booked to book (which no one else did). Plus i really wanted the boarding pass invitations. Honestly, i dont think it was necessary for me to the official invites and if your already doing ahr invites maybe you could save your self some money and skip them. I think you should do whatever you want.