Tom owes me ~$8600. I don't care if it is 8600 BTC worth $1 each, or a single BTC worth $8600.
OK, So please post your order number. In your case it's fine for Tom to wait the next 20-30 years before he is doing the refund. The buying power of your USD will be much less than today but that doesnt't matter. It seems that your are fine with this.
Hell no! The deal was buying a product and not giving an interest free credit. Do you really think what Tom is doing at the moment is good business?!