The lifespan of luggage depends on the balance between build quality and travel frequency. A budget suitcase typically lasts 2 to 5 years if used occasionally, as cheaper materials like ABS plastic and standard zippers tend to fatigue under the stress of baggage handlers. In contrast, high-quality, "investment" luggage made from ballistic nylon or polycarbonate is designed to last 10 to 15 years, and premium aluminum cases (like those from Rimowa) can literally last a lifetime with minor repairs. For frequent travelers, the "cost per trip" often justifies a more expensive bag, as wheels and handles are the most common points of failure. In 2026, many top-tier brands offer lifetime warranties that cover functional damage, ensuring that even if a wheel wobbles after a decade of use, the bag remains serviceable. Ultimately, if your bag survives 50 to 100 flights without a major structural crack or a zipper burst, it has provided excellent value.