Koyasan crazy prices?

Hello everyone 🙂

I am writing to ask you for information regarding the prices of hotels/monasteries on Koyasan (Mt. Koya).

I have to go to Japan in November and it is my third trip.
I have never been to Mt. Koya, but I was already interested in the destination, so I had already looked at the prices and didn’t remember them being anywhere near this high on booking.com.

For mid-November, the hotel/monastery that costs LESS on booking is 400 euros per night (65,000 yen).
I have never seen prices like that and they are completely crazy prices.

Is this normal or am I doing something wrong?

Is there any site or somewhere that you can book at with a price that is not to say low, but at least reasonable.
It’s okay that they are temples on a mountain, but these are really crazy prices.
And this is the cheapest, there are some from €800 (120’000 yen) per night.

Am I doing something wrong? Wrong site?

In the various guidebooks were marked prices from €100/150 per night, and I also remembered similar prices.

Thank you very much for your help!

by Pux26