I've heard there is a ban on exporting Zebras now so it might be harder to find them and definitely more expensive. Luckily though there are several breeders now who are raising them but the demand outweighs the growth rate by quite a bit.
Those are listed as "coming soon" and you should add another $40 to the overnight delivery cost. $290 for one fish.... they used to sell at $90 just a few months ago.