Greed warps the psyche, enabling the willingness to get boned repeatedly in order to maintain the vision of dollar signs dancing in the head. The easiest solution is to only buy in-stock hardware, but even that window has closed. BTC casual mining has been over for some time now. The market conditions that enticed the bulk of pre-orders no longer exist, and that hypothetical 50 BTC return per miner is now at best 1 BTC. Some folks were shrewd enough to cost average into hardware that was actually shipping last winter, and as a result can write off their pre-order mishaps. As for the rest, opt for a refund if possible. The game is over.
After the 1st ASIC rollout debacle, why did anyone continue to pursue pre-purchases with ANY company? The mad, sheep like mentality of supposedly educated miners just went straight out the window, much like the miners of years gone by whom were themselves struck with gold fever.