oh i did the search you suggested and saw all these but they arent the same thing

firstly
one of these people are wearing the Giro helmet pictured earlier

the astana one seems to have nothing in common with the giro helmet
full of vents and no visor

the scott helmet might be more aerodynamic than the average road bike helmet
but does not have the visor that is only found on tt helmets
the only thing it has in common with the giro helmet is that it has fewer vents than most

the guy in the last one doesnt have any sort of aero helmet
just a cover on a standard road helmet

you have failed to prove your point
you are probably just too cheap to admit you might get something for your money if
you pay more than 25 bucks for a helmet
but thats ok
i still love you