I agree absolutely. I did extensive research a couple years ago and discovered that people who buy their mattresses untested from the internet have a higher satisfaction rate than people who go to a store and try their mattresses out and then buy them. Two reasons for this. You do your research more when you buy online so are likely to do a better job at selecting something good, and secondly, you are paying less without the pressure from sales people trying to up-sell you.
Go to
sleep like the dead dot com to do some mattress research. When I did that and read tons of information about all different types of mattresses, it steered me to a
latex foam mattress sold by Amazon. When I bought the mattress, I specified the softness on a scale from 1-10. I fucking love this mattress, two years later. It's like a dream, crawling into bed. It has two types of foam, a supportive thick latex foam that's like 75% of the thickness of the mattress, and a soft foam on the top that is super cushy. They alter the thickness of that soft top foam layer to give you the softness vs. support you want.