Re: A few extra data points
"@Anonymous - the $/GB of SAS increases relative to the $/GB of SATA, i.e. it's not going to fall at the same rate, e.g. SATA might drop around 20% vs SAS at about 5-10%. If the system was in $/GB you'd see a bunch of logarithmic curves with TLC flash dropping really fast and crossing over the curve for SAS but still being an order of magnitude more expensive than SATA. It might seem counterintuitive initially but this is actually one of the clearest ways of showing the relative costs."
Thanks for responding to my question, I'd really like to see the non-normalized version of this chart as otherwise it reminds me of a book I own called 'How to Lie with Statistics' as where the choice of axis and normalization is made to reinforce the premise rather than make it clearer.