Well, that’s the marketing theory, but I haven’t yet heard from someone that said ‘I paid $600 for a block of foam and my butt is now kissing the boxprings’.
I say this only because I have an Akai TV that cost $1200 at the same time the identical Samsung sold for $1600…which originally debuted at $3200. Exact same TV, just a different sticker on the front.
Unintentionally Blank, I see what you are getting at. I meant that you should avoid the low-end foam mattress, and spend the extra for a mid- or high-end model. I am sure there are deals (and ripoffs) to be had in those categories, but I do not know enough about the various brands and manufacturers to offer any useful advice. Whenever I hear someone complain about foam mattresses, they invariably bought a super-cheap model.
BTW, I did not mean to imply that you, specifically, would leave an unusually large depression. 
Oh, I’d leave a large impresson (6’6", 250 lbs), so no I’m not offended (I actually thought it was a pretty funny statement.)
My frustration is at the relative opaqueness of the mattress industry. They’re obviously not all made alike, and 300 lbs of latex (woof! that’s a lotta rubber!) can’t be cheap, but it doesn’t seem like there’s a lot of consumer assistance and knowledge for something everybody uses everyday.
Sleep number for my Wife and I. And the dogs too. It’s funny, they like my side best.
Almost sounds like you need a water bed. Seriously, once you get the temp right, water beds are the place of dreams.
Shopping KILL!
Long story short, we bought a Tempur-pedic Rhapsody, and when the salesman realized we had a limit, weren’t going to go over it, and weren’t going to incur any additional debt, then suddenly we got a ‘friends and family discount’. 
We get it Friday, here’s hopin it’s all we’ve been led to expect!