I also want to point out that for some products (such as smart phones) there’s an additional trade-off between repairability and quality:
When you have screws in your phone instead of having everything glued together, that means you have additional moving parts and probably gaps between the parts, where water can enter and cause corrosion. If everything is glued together, it’s not repairable but it’s also less likely that it needs to be repaired because there’s fewer problems to begin with.
I also want to point out that for some products (such as smart phones) there’s an additional trade-off between repairability and quality:
When you have screws in your phone instead of having everything glued together, that means you have additional moving parts and probably gaps between the parts, where water can enter and cause corrosion. If everything is glued together, it’s not repairable but it’s also less likely that it needs to be repaired because there’s fewer problems to begin with.