Same. I buy them used and my entire family (kids included) has them for their desk. They’re incredibly comfortable and long-wearing. The gas cylinders are repl

Same. I buy them used and my entire family (kids included) has them for their desk. They’re incredibly comfortable and long-wearing. The gas cylinders are replaceable when needed (cheap and straightforward albeit a lot of force is needed to break the old cylinder free from the base). If you want to save money, find one with a flat cylinder. Many people assume they’re not repairable.