right, you can hang your own drive off it to increase capacity. WE understand that. but think of how many times we see threads here asking about taking that drive and watching it on your pc while away from home, or just transferring the movies to the PC/mobile device. that is how many uninformed people will take it. heck, i almost took it that way as well.
shoot, i bet nearly 25% of the folks i know still call the PC portion of a computer the "hard drive"
I think your looking for it .....
I have yet to see someone expect to be able to plug it into thier PC.
Most people that invest in a EHD do thier homework before hand.