2) Heritage Value

The Birthplace is a heritage asset embodying great historical value. It’s financial worth is significantly enhanced through its connection with the Prophet saw, and the 1500 years of history attached to it.

diriya os considered a national treasure for wahabis

Around the world, sites which are the birthplaces of religions, nations, and political movements are acknowledged as national assets. They attract both heritage protection measures and funding for their conservation. The Saudi gov, for instance, is spending almost $133 million fn1 to preserve and enhance the other key birthplace in the country: Diriyah - the 18th century birthplace of the Saudi state.

Fn1: September 28, 2012

https://www.thenational.ae/world/mena/saudi-arabia-s-camelot-to-be-restored-at-cost-of-dh488m-1.390760