Business real estate has taken a big hit because, well, why do you need an 80 story office building that cost a billion to build and millions to maintain when people work from home? Give the workers an allowance for the use of their home computers and home network connections (or supply them) and you come out with fewer expenses (and bigger profits). The worker takes home more money by forgoing the daily commute, etc. The office camaraderie takes a hit, but that wasn't cost-efficient anyway.