. "difficult-to-service" . . . . "built-in obsolescence" . "Planned obsolescence" . . "Planned_obsolescence#Prevention_of_repairs" . . "Planned and perceived obsolescence" . . . . . "non-replaceable batteries" . . "his service life expiring so the new model can be sold" . . "planned as a limited-time application" . . "changing the main bearings difficult" . . "ensure incompatibility between editions" . "extension of product lifetime" . "Planned obsolescence" . . "obsolete" . "stop working" . "planned obsolescence" . .