Maybe they wouldn't need to replace or renovate so many Kingdom Halls if they actually built them to last and stopped decorating them in styles that quickly go out of favor. How often have you walked by or into and old church and thought "Ewww...this is so dated." Yet that has gone through my mind everytime I've stepped into any KH more than 5 years old.
In my area there is a congregation that recently sent in almost $2 million dollars to the WTS it had saved toward a badly needed renovation. (It's an old hall in a very wealthy area.) Now those local friends are getting very nervous that instead of renovating this historic (and very valuable) property, the WTS will force them to sell it for millions, see all that cash flow to NY, and force the friends to build a hall the next town over for $500,000. In the end, the WTS would probably net $3-4 million from that one congregation.