Due to flooding in Thailand where most hard drives and their components are made, hard drive supplies have been extremely limited. This has caused availability and pricing fluctuations. Due to the current situation, we are not able to guarantee hard drive pricing, as our cost fluctuates hourly. Should we encounter a pricing issue with your order, we will contact you before your order is processed and shipped. We will also be unable to accept back orders on hard drives at this time. We apologize for any inconvenience.