Where are Seagate and WD SSDs in the market? Why are they sitting on the sidelines while Intel, Samsung, and smaller players eat up market share?
(They actually have SSDs, but they're not competitive in the consumer market. See http://www.seagate.com/internal-hard-drives/solid-state-hybr... and http://wd.com/en/products/solidstate/embedded/ )
A lot of the SSD companies aren't really making that much money. The fabs to make the memory chips are huge capital investments and suppliers have historically been bad at managing supply and demand leading to volatile pricing.
Hence the current drop in prices cited in the original article.