Just an anecdote, but I know someone who had an Ideapad gaming model and while it seemed solid brand new, a year or so in it started falling apart and by year two it was looking ragged just from normal usage, mostly at home on a desk or a lap (so no wear from travel or being knocked around in a bag).

The issue seems to be less with structural design and particular choice of plastics that cause them to not hold up to wear.