I'm skeptical of that source as it states that "Average selling price is said to have been stable throughout Q1 of 2012 and is expected to drop only slightly in Q2 2012."
That's absolutely false:
http://camelegg.com/product/N82E16822136769
Yes, I realize this is one model, but it's gone from $120 on December 30th 2011 to $65 as of today. I'd say that's a far cry from 'stable' and 'slight drop.'
The thing you need to realize about ASPs from HDD manufacturers...
90+% of the volume comes from OEMs like Dell and HP.
<10% of the volume comes from places like Fry's, Newegg, Amazon, MC, etc...
When the floods hit, they had locked in prices for the coming quarter with OEMs already... So channel prices had to rise incredibly high as a result.
The next quarter came along and they locked in higher prices for much longer than a quarter (low supply gave them the upper hand on negotiations, so they took advantage). This was probably a small price hike compared with the channel hikes you and I saw.
The channel can now come down to slightly higher than pre-flood prices and the MFRs can still maintain the same AVERAGE selling price, because the vast majority of their sales are to OEMs, and these prices dominate the ASPs.