I mentioned earlier in a previous, but IMO, the new metro Start Screen is BETTER for most businesses. I work as an engineer, and the programs that we use are below. Most of our ERP and BOM systems are web-based, so with Windows 8, each of these internal links can have a tile that's easily readable.
Microsoft Office 2010
Outlook 2010
Circuit simulators
Internet Explorer
Some internal software for inventory, ordering, pulling test data
Minitab for statistic
All of these can be pinned and organized easily on the new start screen as opposed to the "All programs" within the old start menu. In fact, I would say people can easily navigate the start screen ONCE they know the bottom-left corner. Businesses DON'T have to use the metro apps. In fact, you can run Windows 8 without ever touching a metro app if you don't want. But the benefits over Windows 7 are awesome especially in network performance, cpu utilization, multi-monitor, battery time, start-up time, etc... all of the small things add up.