The most expensive way to buy blades ever...<p>Mach3 Turbo: $3.50&#x2F;blade ($2.09 on Amazon S&amp;S).<p>Fusion: $4.50&#x2F;blade ($3.17 on Amazon S&amp;S).<p>ProGlide: $4.90&#x2F;blade ($2.61 on Amazon S&amp;S).<p>And since I am comparing it to Amazon&#x27;s Subscribe &amp; Save, both include delivery and the same level of convenience.