Idea: How to Delay Obsolescence

How do you design a product or a feature which won’t go obsolete quickly? Many products today are poor copycats that look similar but do not perform well. For example, a cheap, metal soap tray will rust quickly whereas a high quality one (perhaps the original design) will last much longer. How about laptops or printer cartridges? Are manufacturers focused on future business opportunities when it comes to re-use of components and materials, rather than making re-use user-friendly?