So yes it is cheaper to replace a window than a glass wall but it is much much much cheaper and quicker to replace failed panels of a glass wall than sections of failed brick veneer or precast concrete.
Glass wall vs concrete wall cost.
You re just comparing a window vs an entire window and wall system.
Poured concrete walls cost.
Glass may provide a contemporary aesthetic but the look will cost more money than a wall finished with drywall.
While drywall is readily available in large quantities at local hardware stores glass walls are highly specialized requiring cut to fit glass suspended on an infrastructure of metal braces.
A poured concrete wall averages 6 153 for homeowners around the country with most people paying between 2 870 and 10 272 you might pay anywhere from 932 to 25 000 depending on the size materials design and overall labor.
When direct costs are considered glass facades are much more costlier than brick walls atleast here in india as it requires highly skilled labor and higher material costs.
On average however you can expect to pay about 31 ft of concrete wall and 34 per hour of labor for several contractors installing a concrete block wall.
I am guessing by using glass for walls you refer to glass facades.