So youre at the checkout, about to click "purchase" on your online order, when a box pops up asking if youd like to pay an extra $70 for an extended warranty. Youre splurging on a brand-new, $600 DSLR camera... so you hesitate. Should you buy the extra insurance? Is the $70 worth it? Probably not, say the experts. Heres why: New products rarely require repairs. According to Consumer Reports, research reveals that most products usually dont break during the two-to-three-year period...