You have to speak to Aerospoke first and provide them with the serial number of the wheel I believe, otherwise as you point out one wheel would turn into five quite quickly, postage costs notwithstanding.
I thought it to be quite reasonable of them, as has been pointed out above Aerospokes weigh roughly the same as the Moon and are therefore expensive to post.
You have to speak to Aerospoke first and provide them with the serial number of the wheel I believe, otherwise as you point out one wheel would turn into five quite quickly, postage costs notwithstanding.
I thought it to be quite reasonable of them, as has been pointed out above Aerospokes weigh roughly the same as the Moon and are therefore expensive to post.