What the article describes is just a possibility and it happens to the unluckiest people.
https://www.backblaze.com/blog/wp-content/uploads/2014/01/blog-fail-drives-manufacture.jpg
I have a WD 1TB drive for 5 years now. According to the news it should have failed already, or at least a one of my neighbours HDD should have failed.
None did.
I'm an early adopter of Bitcoin for fucks sake and I'm going all in, but cryptocurrencies are a whole new technology no one has ever seen before, SSD's are just a small improvement on something that works very well already so I don't consider the price difference to be worth it, it's just simple maths really, It's good to take a look at early technology and support it but if you're using it for something very important ( Like for instance storing work on it ) you damn well better be sure you understand how it works first.
https://www.youtube.com/watch?v=6kwCgUzCL4w
That's 2.9 times faster on a mac and it gets even better on windows. Booting on my HDD took around 2:30 (with all programs included). My Samsung 850 Pro boots all the same in 30 seconds. That's 5 times faster. This is not something that you call a "small improvement". HDDs and SSDs don't work well. This is still too slow and unreliable. Hopefully one day PCI-E SSDs will be reliable and fast enough.
Currently the best SSD is Samsung 850 Pro. I don't even want to mention what it does in rapid mode (in some cases). Just take a look:
http://www.extremetech.com/computing/189003-samsung-850-pro-review-3d-nand-and-ram-caching-result-in-the-fastest-most-durable-ssd-money-can-buy/2
This is not a "small improvement".
For comparison look at HDD speeds: http://techreport.com/review/27464/samsung-850-evo-solid-state-drive-reviewed
HDDs only win at price and capacity which are both connected and should count as the same point. The transition from HDDs to SSDs will result in lower prices and the SSDs will show total dominance.