Three (homonym with "alive") is a lucky number in Chinese culture. Four (homonym with "death") is an unlucky number. Apartment buildings built for Chinese persons often skip all floor numbers with "4" in them as well as all apartment numbers with "4" in them.
I'd like to see one that starts on the 14th floor. I mean, if we're going to indulge arbitrary biases, let's go all-out.
And while we're at it, let's have at least a few cases where we number the ceilings, too.
He makes a fair point though--if you're so superstitious that you're uncomfortable with the thirteenth floor, shouldn't you be uncomfortable about it regardless of its nomenclature?