Most companies are considerably better at launching products than at retiring them. The reasons are structural rather than sentimental.
The true cost of a line is understated
A product's reported profitability usually counts direct costs. It rarely counts the share of management attention, system complexity, warehouse space and support burden it consumes.
Those costs are real but shared, so allocating them is a judgement rather than a measurement. Products that look marginally profitable often are not once complexity is included.
Complexity also compounds. Each additional variant multiplies combinations in forecasting, purchasing, packaging and support beyond what the additional revenue justifies.
Small lines occupy disproportionate attention
Problems arise per product rather than per unit of revenue. A line contributing a small share of sales can generate an equal share of the issues requiring senior attention.
That attention is the scarcest resource in most companies. Time spent maintaining a declining product is time unavailable to the ones that are growing.
The displacement never appears in any account, which is why the decision looks closer than it is.
Sunk investment distorts the judgement
Development cost, tooling and inventory already spent cannot be recovered by continuing. They are irrelevant to whether the line should continue, and they dominate the discussion anyway.
Individuals who championed the product also have reputational exposure. Discontinuation reads as a verdict on their judgement, which makes advocacy for retention predictable.
Companies that separate the decision from the people who made the original one reach cleaner conclusions, though that is organisationally harder than it sounds.
Customers are the binding obligation
Existing customers may depend on the product, sometimes contractually and sometimes through equipment that cannot be replaced quickly.
Abrupt withdrawal damages relationships that extend well beyond the discontinued line, and it can breach warranty, spare-part or support commitments whose requirements vary by jurisdiction.
This is why exits are usually staged: closing to new customers first, then to new orders, with support and parts continuing for a defined period.
What a clean exit actually requires
Remaining inventory has to be sold or written off, tooling disposed of, documentation archived and the supply agreements wound down on their own notice terms.
Staff attached to the line need reassignment, and the systems, listings and catalogues carrying it need updating in every place it appears.
Exits that are announced but not executed leave the complexity in place while removing the revenue, which is the worst available outcome.