Hi CCoffey,
It’s probably better to keep it in this topic so it’s easier to refer back to your previous posts.
The Elegance has the same specs as the Pure Latex Bliss Beautiful and the Essence has the same specs as the Pure Latex Bliss Nature and you can see the details of them both of them in post #2 here so you can make some comparisons with the specs of other mattresses.
The Beautiful has a 3" layer of 15 ILD Talalay over a 3" layer of 24 ILD Talalay which would be in a very soft range and while this may feel great in a showroom … it would also have some risk of being too soft for some people to provide good alignment over the course of the night (alignment issues tend to show up when you wake up in the morning or after sleeping for a few hours). If you had a mattress with 9" of latex that were similar to the bottom 9" of the Beautiful then you could add a 3" soft Talalay latex topper (14 - 15 ILD) to “approximate” the Beautiful although it would still be a little different because the cover of your mattress would be in between the top layer of the mattress and the topper (which would affect how they feel) and a topper outside the cover will also feel different from having the same layer inside the cover (see posts #3 and #4 here and this topic).
If you did decide to consider purchasing the Beautiful (or the Nature because it can be less risky to choose a mattress that is a little too firm than a mattress that is too soft) then post #32 here includes several retailers that sell the PLB mattresses online that would also be well worth talking to so you can make some good “value” comparisons for the same mattress (PLB has MAP or miinimum advertised pricing that doesn’t allow retailers to list their selling price if it’s lower than the MAP price.
I can’t really help with the choice between memory foam and latex since this is a preference issue that each person needs to decide for themselves but there is more about the pros and cons of each in post #6 here.
Phoenix