Reason why its bad idea:
If you plan on using that dedicated server for Web hosting, it may not be a good idea to host from your house. the reason behind this is because you personally will be responsible for any hardware failures. You will also be responsible for the security of the server as well as other things that data centers take care of for you, say if you rent a dedicated server in a data center somewhere you're not the technician that's constantly working on the dedicated server. What if you were doing a web hosting company that you have probably 50 people that relies on you to have their website up online constantly 24 seven and then boom your hard drive goes out and you lose everything. You will be personally responsible to go out to the store. Purchase a new hard drive and input into the computer and then everything back up yourself.