that's bananas, in Australia replacing a roof is really uncommon. much like the poster above in the UK it's usually either corrugated "tin" (actual metal varies) or Terracotta/concrete tiles.
We don't really have any of the "shingle" type stuff. The "Tuscan" glass tile from the Tesla event is the closest looks to the most common tiles here.
You normally don't replace a tile roof unless you get hit by a big hail storm. If these glass tiles hold up to hail better than tile then they would be good fit here.
Corrugated iron rusts out, but it has a pretty long lifespan.
The bigger issue is in many areas you are restricted in what roof material you can use - lots of locations limit you to tiles only.
We don't really have any of the "shingle" type stuff. The "Tuscan" glass tile from the Tesla event is the closest looks to the most common tiles here.