Do I really need a 'heavy duty' utility knife or is a budget one fine?

For light home use - opening packages, trimming shelf liner - verified-purchase reviewers say sub-$10 options work fine. Heavier work (drywall, shingles, repetitive cuts) is where high-trust community feedback starts separating durable handles and reliable blade locks from disposable ones. Frequent blade changes and a secure lock matter more than handle material for most users.