Compare warranty cost against expected repair expenses. Research common problems for your product and their repair costs, then multiply by the chance of failure. Factor in the warranty's claim approval rate and your deductible. For example: if a $2,000 warranty could cover $8,000 in potential repairs with 15% failure probability, your expected cost without coverage is $1,200. Add the peace of mind value. Quality warranties from established providers often provide better value due to higher claim approval rates.