And that is your problem in a nutshell. Those of us who discovered (via this forum) that Platinum became free a while back when it had only 7 mostly worthless channels, we added it. So, for the same $10 HD add-on fee, we got HD + Platinum. Then, when HD went "Free for Life", we got it automatically. Then, if we wanted, we could jettison Platinum and save $10/mo.
Those customers who never added the free Platinum never got the automatic promotion to Free HD for Life.

I'd use the devilish emoticon here, but in that one the devil is smiling and that's definitely not how I feel about such treatment.