You'd be amazed or,maybe not, Warren at how many people come into
the shop looking to get a larger memory card when, sadly, their camera
won't accept the larger (capacity) cards.
And, trying to find smaller
capacity cards more difficult, especially when the larger cards are the
same, if not lower, cost.
On a lighter note, a fellow came in about 18 months ago to purchase
a D800 and brought in a memory card to use in the camera. I asked
him if he remembered the film days when you were, for the most part,
limited to 36 exposure rolls and how annoying it was? He agreed and
I said "well, with your 1GB card and your D800, you're right back there