I spent a long time on this, and this was something that helped me wake up.
There are 115,416 congregations in the world (yb2014). Not every congregation has its own kingdom hall admittedly.
About 70 000 of these congregations are in industrialized nations, where property is not so cheap. I have traveled through almost all European countries, Scandinavia, US and Canada. Certainly the properties are quite valuable in these lands where most of the assets are.
Take whatever average value you want per KH, take whatever percentage of congregations have their own KH and do the math yourself. You will come up with a large figure. The WT does not make any kind of financial statement, so any figure is speculation. We know that the buildings in NY alone are worth over 1 billion dollars.
How much cash did the Watchtower fleece from the congregations in addition to taking the buildings?
How much are all the branch offices worth?
How high is the investments in hedge funds and other investments?
What value does all the inventory in the branch offices have?
Using the same figures for congregations, what is the annual income for the building fund? Just take the figure from your own congregation or the last congregation you belonged to, (you know the brothers you can estimate), and multiply that up. Take into consideration that almost all labor is free for the organization, and that is a vast amount of money that will never be spent on KHs and maintenance.
My figure of US$50 billion, is only a calculated guess, but I did spend a long time considering this and the possible financial situation in the industrial lands. I do not think that one of the pathetic buildings the organization builds for the brothers in a poor African land is comparable to anything built for the brothers in the US.
this figure disturbs you, it disturbs me as well. I will not make any excuse
for an organization that took 28 years of my life.