It’s a tad disingenuous to compare windows here, and I think $25k is still a bit of an exaggeration.

$25k would get you top of the line shit and enough area for making a “glass house” of that size when looking at material costs alone.

Talking triple pane, extra thick, argon filled, tempered and impact resistance panes with a UV filter and any additional cost adders for the (foam filled) anodized aluminum frames.

Labor costs are another thing.