Hi Jeffblue,
Yes ā¦ they are both blended Talalay latex
Without realizing it you came across the most effective negotiating method which is finding a mattress that uses the same materials at a lower cost and being willing to walk away from a position of āstrengthā (see post #6 here about negotiating).
I think you have a good handle on the pros and cons of each so that you are in a good position to make a final choice (see post #2 here) between āgood and goodā based on all the objective, subjective, and intangible parts of your personal value equation that are most important to you.
Neither one would be a āmistakeā IMO and either way you would be making a better choice than more than 90% of consumers that end up making a āblindā purchase of a mainstream mattress.
Phoenix