Breaking news: Manufacturers of less expensive phones want their products to remain less expensive.
best advantage of sapphire glass is scratch resistance.
Apple should continue to manufacture high quality phones with superior materials.
Importantly, Apple made a _major_ financial investment into Sapphire Crystal glass production. That's sunk money. From now on, Apple's price for Sapphire Crystal glass will be an awful lot lower than anyone else's. Everyone except absolute low end would love to use Sapphire Crystal if they could get it at the same price as Apple does.