Fiberglass will be anywhere from 30% - 50% more expensive typically.

+1

It would be the higher end of that spectrum in my market but it will certainly cost you more.

Thanks to you both for replying. I'm in central california, inland if that's of any help.

Eta* are there any vinyl companies worth looking into where black would be offered as an interior color option? I've only come across black as exterior option .

Black interior does narrow the offerings a bit.

There are some paintable interior windows but given your region of the country, a fiberglass or even aluminum window is not a bad option.