If you really want to do it right you should provide customer protection by providing refunds based on missed opportunity cost.
For example:
- HashFast promises to ship on October 30.
- Customer paid ~60 BTC for a pre-oder unit.
- Customer registers a refund BTC address at the hashfast.com site.
- For every day HashFast misses their target shipping date, a partial automatic refund will be made based on what a 400 GH/s unit would have mined at the difficulty at that date.
- This would continue until either the refund is complete or the unit is delivered.
This would:
- Prevent a BFL-type pitchfork scenario and alleviate worries that HashFast might be hashing with customer hardware at customers expense.
- Give customers peace of mind; At worst they would have provided a free BTC loan to HashFast. At best they get a unit that has already started making some ROI before delivery.
- Provide a strong incentive for HashFast to deliver on time.
We are working on finalizing a guarantee program for purchasers that will provide some good coverage in case of late delivery, the text is being perfected now, and we will be publishing it in the next few days.
It will be offered free to all existing purchasers.