The glass rider is not a free ride. Most companies will consider a glass claim to be a claim, and if you put in too many, you are canceled.
In Colorado, you have to replace your windshield frequently because of sand pitting as well as cracks. This time of year, about a third of the cars at any given time have a cracked windshield. If the windshield truly is $1000, it would be a deal killer for me. I don't carry the glass rider because within a few years I'd be canceled. I need a new windshield every year, and I've had two in the same year several times.
Is there something unusual about the windshield, or is it just that there are no aftermarket windshields in the US yet? The Toyota FJ Cruiser windshield is a total debacle, because there is a piece of painted trim attached to it. Initial windshields were $1200-1500, but they have come down since the aftermarket stepped up.