Let's do the math... what would you say if I told you that, if you paid three times as much, you could buy a quality Sonicare toothbrush&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Philips-HX7361-Sonicare-Elite-e7300-Power-Toothbrush/dp/B0015INAVC/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Philips HX7361 Sonicare Elite e7300 Power Toothbrush</a>&nbsp;that lasted 20 times as long and never needed a battery? Or, if you paid about twice as much you could buy another quality Sonicare toothbrush&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Philips-Sonicare-Advance-4100-Sonic-Power-Toothbrush/dp/B00008BFXG/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Philips Sonicare Advance 4100 Sonic Power Toothbrush</a>&nbsp;that lasted probably 10 times as long and, it too, never needed another battery?