Lifetime of a Product !

There is a vast difference between lifetime of a product and producing lifetime products..

If you produce lifetime products you ruin your own market value and are very less likely to be brought again. The reason is simple, if your product is a lifetime product, its going to be there forever - or at least for a long time. So you actually lose the chance of buyers coming to you to buy your product.

If your product is robust, scalable, multipurpose all at the same time, the people will never need product, even if you produce one. Item called killing your own profits.

More of the story : If you wish to stay in the market, don't produce lifetime products. Produce product that have a definite lifetime.