The difference is really enormous.
Firstly, it is the level of design itself, brought to perfection by a great deal of experience in the industry.
Secondly, the incredible complexity in manufacturing. In many cases, to get, for example, a model of art-class furniture, you have to make many prototypes before moving on to the final work with valuable wood.
And even in this case, it is necessary to make plastic moulds from alternative materials. Today, craftsmen of this class are worth their weight in gold. Such talents are impossible to find.