Over the years that ThinkPad laptops have been in production, they have earned a reputation for quality with models such as the workhorse Lenovo ThinkPad T14s Gen 5, and innovation with machines such as the Lenovo ThinkPad X1 Fold Gen 1. Less well-known is that their bulletproof build quality, repairability, and after-market mods have led to these decades-old machines being upgraded and used long after their expected lifespan.