Well, Well, Well...
I think you might be the .01% of the Internet users. Most can't spell computer or know how to use it.
I agree on the backup, but all the commercial companies know how to do backups at night with something as slow as DSL, and all those Cable modem users are not symmetric either.
If your doing work from home, you either have a competent IT department or you don't. Most larger companies have a remote solution, Server based computing using RDP. PCoIP or the like.
Graphic designers... Hell they can bury the 1gig connection at work and fill up any disk they have access to, so I am not sure those people have enough patience to try to work from home. Besides if they have a real workstation at work, why the hell do they try to piss off time at home with something that does not have business 3d Graphics, SSD RAID subsystem, dual WQHD/WQXGA displays and TONS of RAM... And I for sure would not spend the coin on that hardware at home. The geek in me wants to have that but I have better things to do with that kind of dollars.