Good point but he can buy round cables too as Kony has pointed out.
The only thing I dont like about some round cables is they seem kind
of fragile at the ends where the wires attach to the ends. I always
end up yanking them out and in when Im testing something when things
go wacko sometimes and buying new stuff.
Some rounded PATA cables have a (clear?) lamination across
all wires which seems to even out stress on the cables a
lot. That would be a preferred construction choice but
given a cable with loose wires it might help to draw a bead
of caulk or epoxy across the wires where they meet the
connector.
For all the times I've heard people mentioning cooling
benefits of SATA, I just don't see it, rounded PATA cables
are as cheap (if motherboard didn't come with the SATA
cables) and are "good enough"... indeed, with a properly
cooled HDD rack even a flat PATA cable can be used and the
drives stay cool to the touch. I have to wonder if those
promoting different cables just have poor case airflow. It
does help to have SATA cables, don't get me wrong, but the
difference can easily be insignificant.