>>349379893
depends of the quality of the booth models.
we can have a proper discussion about this of what makes a model worth more or less.
In your case those are low poly models, and you can find those either really cheap (max either between 100 or 1000 yen) or for free sometimes, depending of the author of course and the intentions it has withing the model.
Standard and high quality models are around 4000 and 6000 yen. If you have any specific question just ask