It's not as much data as one might think, especially if you store the deltas -- there's not that much variation between individuals. That fact has actually been exploited to a great extent in enabling the $1,000 genome.
How much is "not much?" How many "values?" If stored as byte strings delimited by \n, how many lines? (I don't know if these are even answerable questions at this point, just wondering.)
Put it that way you can store the genome of 8 people on an 8GB SanDisk Cruzer Micro USB flash drive. It is not that large.
Very specific brand of flash drive. ;) Thanks for the figure.
It's optimized for cost!
The raw data (the original image files), while mostly transient today, is massive. At some of the big genome centers they are in the double digit TB's of data processing per day