Denon DVD5910 1080p upgrade? anyone have it?

The only software that I'm aware of that has a native output of 1080p is the extremely limited (at this time) BlueRay stuff. Unless the Denon up converts and you have or plan to get video source that can accomodate 1080p I don't know if there is much real value in the upgrade. On the other hand it might add to its resale value, which I kinda doubt unless further upgrades are made available.

The Denon does only 1080i as it is.
The 'new DVD-5910ci does 1080p.
An upgrade is available via Denon (for $300) to upgrade the DVD-5910 to the DVD-5910ci so it too has a 1080p output.
So THAT is the question: is it worth $300.?
I only PAID $1,800. for the player locally, The dealer had FIVE in stock and was desperate to sell them!! So $300 more is, well, more! not like I had the cash for this thing @ List $3,500.!!!!!)
I KNOW no TV's now accept any 1080p input, but pretty soon they will... And I want to know if it is worth blowing $3small on it. (I am CERTAIN that this upgrade is a very 'limited time' offer from Denon. Three months from now I will just cry because it is too late, If it is worth doing.)

Actually some current sets have 1080p inputs.

Considering that native DVD resolution is only 480p at best I guess I don't see the point.