Here is my 2 cents

a well constructed gunite pool can last forever. I am sure 100 years from now there will be gunite pools that are over 100 years old. I don’t think the same will be true about vinly pools.

But a well built vinly lined pool can last a long time also. My parents have one that is 25 years old.

All the large buildings and bridges in the United States today are built with steel and not just concrete and rebar, but the foundations for buildings and bridges are build from concrete.

I dont think most vinal liners will outlast plaster either.

There is nothing wrong with a vinyl pool. They are usually cheaper. I looked at your other posts and you got a quote for a gunite pool for $33,000. That price seems right for my area. If a vinyl pool company could build a similar pool in the mid to low $20,000. Range I would consider it.

If the price is the same or only a few thousands lower, no question ....... get the Gunite

Also I would not buy a pool from the company you got this information from.