Latex versus Tempur

My partner and I are looking for a new mattress. She is 10 stone, I am 13.5 stone.
We first slept on a Tempur mattress on a recent holiday and really liked the experience. We went to try out the Cloud 27 recently instore and were very impressed.
We are looking at a budget of 2,000 to 2,500.
Reading the numerous articles on your site you seem to be quite dismissive of the memory foam options and I'm interested to find out what better options are for that kind of price range.
I really like the firm sinking feeling that the Tempur mattresses have over pocket sprung mattresses and am interested in your Latex options but find it difficult to make such a large purchase without trying the bed out.
What would you recommend?