I am currently considering making some dragon-touched armor for my paladin, but I do not see any options for adding damage reduction. Am I missing something, or is this a major drawback to getting dragon-touched?

I am currently wearing giantcrafted full plate, which has DR 3/-. The way I see it, for a toon with 500 hps (to make the math easy), that DR 3/- is worth (or approximately equivalent to) a lot of hit points, 50 to 100 depending on assumptions. Is it generally advisable to give up the DR for the benefits of DT? notably, I could free up some other slots (3 I think) for greensteel items if I make my DT just right....

note that I do not care about AC, as I have given up on it for this toon.

Thoughts?