I had a similar thing with a Toshiba TV stand. It has the sort of adjustable hinge you get on cupboard doors, but of course not quite a standard size. Part of this is plastic and has worn, so I'd like to replace it. Plastic part: value of a few pence. But they don't sell that separately. Hinge: a few pounds at most, but again they don't sell it. No, you had to replace the full stand at over £400. Guess what - we didn't bother.