Hi Matchmee,
The “value” of a mattress purchase depends on the criteria of your personal value equation that are most important to you and on the specifics of the mattress you are comparing (in terms of PPP as well as the materials and design and the other options or benefits that go with the purchase). There are certainly other mattresses that contain 9" of Talalay latex (the same as the nature) that you may prefer either for price reasons or because the design is more flexible or it’s a better “match” for you in terms of PPP but woud also depend on whether you are only comfortable looking locally, what else is available to you, or whether you are including an online purchase as a possibility
Some of the options and possibilities I’m aware of in the San Antonio area I’m aware of that also make or sell latex mattresses that you may wish to compare to the Nature/topper combination are listed in post #2 here.
There is also a list of some online PLB dealers in post #32 here that you may want to talk to to make some value comparisons or do some price matching with the Nature and topper.
The list of some of the better online retailers and manufacturers that also offer latex mattresses with different designs and options that may also be worth considering or comparing with the Nature (based on your personal value equation) are listed in post #21 here.
Phoenix
PS: I switched your post to a new thread that was more specific to your question 