There's no HDD that is similar to SSD. Even 50 15,000-RPM SCSI/SAS drives working at once cannot ever be made as fast as a consumer SSD. Those who need speeds most try harder to compare the most expensive HDD with the most advanced SSD: http://www.webhostingtalk.com/showthread.php?t=1232604
I'm not sure if anybody noticed, but when the HDD had 10% of it's product wiped out by floods, the SSD industry took that as a chance to push SSD products higher in price too.. albeit not as high as HDD price spikes, since their prices were ALREADY sky-high to being with.
NAND and SSD prices did not go up. HDD industry was affected. Consumers were affected. But the overall HDD industry was little affected. For those who wanted to buy at least one unit of 3TB HDD every month, that must have been a tragedy. For most consumers, there was simply no problem, no price increase. Most consumers do not go to newegg.com and choose the most cost-effective HDDs. The average PC users simply order pre-configured PC. A small percentage of PC users order HDDs from Bestbuy, Amazon, small shops, etc. Most of those "home builders" or "DIY-ers" choose US$50 HDD. They don't need 2TB or 3TB HDD if they can buy a 500GB HDD for US$50.
It's true Seagate and Western Digital earned more thanks to the disaster in Thailand, but the widespread perception HDD prices were raised was largely based on nothing. The overall impact was far smaller than perceived. Just like bank runs of Hong Kong decades ago, and the ongoing DRAM prices.
There must have been some retail stores trying at some moments to raise their SSD prices, but nobody really needed to buy from them. What happened to the unlucky Western Digital HDD factories in Thailand were not serious enough to affect SSD prices. Contract prices and retail prices did not go up. I usually check prices on both retail and OEM sides of markets in the US, Japan, China, South Korea, Taiwan, and several Western European countries.
SSD prices were already low enough compared to SSD before the flood. It was just that some people realized the potential of SSD too late. Looking back, I wrote SSD was going to replace and how it would restructure the world's storage industry around 2005. Replacing HDD with SSD made sense even before 2005. Most of it was experimental for some years between around 2000 and 2005 because making SSD inside every computing device would require tens of billions of dollars to invest and shareholders and executives needed years of concentrated efforts for such experiments before making group-wide decisions.
To make 1TB at US$125 will not require 25 years, but 25 months.