The price of gas lighters is primarily driven by material durability, ignition mechanism, and safety features. High-quality lighters utilize piezoelectric ignition systems tested for over 10,000 strikes. For the body, heat-resistant ABS plastic or zinc alloy is preferred to prevent cracking under pressure. Ensure the product features an adjustable flame valve and a visible fuel window for user convenience. For utility lighters, a flexible stainless steel neck adds value but increases the unit cost.