What is the useful life of quartz countertops ?

[Enes A.]

I am a tenant and I damaged a part of the quartz countertop. The landlord is telling me to pay for the entire kitchen replacement as it is not repairable and the brand/colour is not available anymore.

I agree only on paying the fair market value of the countertop before the damage occured. To calculate that I would need a formal source that would indicate the useful life of a typical quartz countertop. I spend hours every day looking for that information in google and I couldn' find anything rock-solid (pun unintended :p) that I could use in my negotiation.

Does anyone know where I could find that information ?

Thank you