[davismwfl]

Along the Terms of Service line. Don't forget that most ISP's even if you have a business account can/will limit what type of things you can do. For example, if you dream of being the next porn king site from your garage, prepare to be shutdown fairly quickly, it violates most ToS. Also, bulk email and video hosting will generally violate the ToS too.

Most of the clients I run into anymore that really want to host their own is because they are being told no by co-location facilities or other providers because of content or usage restrictions. The other's are generally security concerned, but maybe don't understand all the work and repeated work that goes into hosting a secure server/service on the Internet, between network security, firewall rules, server patching etc.

Not saying don't just make sure your reasons won't get vetoed by the ISP.