One should only buy a frying pan that has a manufacturer's warranty, even if it requires paying more, and even if one would never bother seeking reimbursement should the pan not work well or last long.
Conclusion
Even if you have to pay more and even if you would never follow through on making a warranty claim if your pan broke, you should only buy a pan that has a warranty.
Evidence
If offering a warranty meant that a company would need to reimburse a bunch of customers when the product broke, then manufacturers wouldn't offer a warranty.
Evaluate
This premise is conditional. By contrapositive, it tells us something we know about every frying pan that offers a warranty.
if manufacturers → company doesn't think they offer warranty will have to reimburse many
So our author is saying that we should only buy pans that offer a warranty, because that means the manufacturer isn't worried about having to pay out a bunch of warranty claims.
Our author is assuming that .
But maybe they're not worried because even though they anticipate many of them breaking, they don't think many customers will have the follow-through to claim the warranty.
Goal
The answer will give us more reason to buy pans that offer warranties, or it will rule out a possible objection, such as