I believe in one of the earlier threads Robert did mention that around $900?? would be the price including shipping.
It'd probably have to be more than a $25 discount for me to pull away cash flow for an investment that would take an indefinite amount of time to reach me.
It'd really depend on the wait time for these things. If I have to wait for about 2 months, yeah I'd do the $25 deal.
If it's 6-8 months... well I'd be looking at $75+ which probably would cut a decent amount off of your profit margin.