Granted, few people really need 1 terabyte of storage. But it sounds cool--sort of like you could be running a ballistic missile tracking site in your den. Besides, humans continue to show that they can come up with ways to gobble up hard drive space.
It's my considered opinion that 1 terabyte will not be enough for the average "home" in the very near future. Broadband distribution of HDTV, hosting of DVDs, HD Home Movies......
Hmm, lets just say HD shall we!
Now is a good time to be a storage vendor, but what we really need is an efective way to manage and backup all this content.