At many electronics retail stores, the consumer has the option of purchasing product warranties that extend beyond the manufacturer's warranty.
Evidence
Most problems with electronic goods occur within the period covered by the manufacturer's warranty.
Conclusion
Consumers are generally better off not buying extended warranties.
Evaluate
The conclusion compares how well off consumers are who purchase the extended warranty with those who do not. To establish this conclusion is a straight forward calculation. What does it cost to pay for repairs out of pocket that occur after the manufacturer’s warranty expires and what does the extended warranty cost? The consumer is better off going with whichever option is less expensive.