This gentleman knows what's going on. I don't store bitcoins offline myself because I prefer to keep my money in USD (it's a bit more useful  ), but it would be cool to see the internet in general start accepting bitcoins as a payment method. I think once Amazon allows the use of bitcoins an offline wallet will be a very good idea. Until then, I rarely keep bitcoins from one day to the next (unless you count amounts less than half a bitcoin, leftover from transactions)