What is the difference between eCS Business and eCS Home/Student???
The eCS Business price is higher, but why??
Take a look here: http://www.ecomstation.com/where_purchase.phtml?url=get_ga.html
Business have longer SSS and telephone support. And you can buy unlimited amount of licences for production use. I guess "production" means commercial. (This has sometimes been interpreted as if you could use your license to install on a unlimited number of computers. If that was the case it would have been very bad business...!)
The home/student have a limitation of 5 licences for production use, a shorter SSS and no telephonesupport.
So I guess it is just a matter of priviledgies and no difference in software.