Hi cankazy,
Latex is a very high quality and durable material whether it is in a one sided mattress or a two sided mattress but there is more about the pros and cons of a two sided mattress in post #3 here and the posts it links to.
There is also more about the most important parts of the “value” of a mattress purchase in post #13 here that can help you make more meaningful comparisons between mattresses and decide which one is “better for you” regardless of whether the same mattress or design would be “better” for anyone else.
Phoenix