I am not sure if I understand your question. I have a 07 Eagle 325BHS with the thermal windows but they are not tinted. I find my unit is a lot quieter and warmer in cooler weather than my old 5th wheel because of the windows. It would probably be a lot cooler if my windows were tinted.
I would think that it would be a nice option. If you think about how long you will have the trailer and the advantages the up graded windows offer it is a minimal amount over time.
Especially as you stated you have all the other options. I'm sure you will be glad you choose the option.