It's fairly well known that the Vertex 2 and 3 were not reliable. Personal anecdote would be the few lucky people who did not have issues with the Vertex drives.
And again that's anecdotal.
And warranties don't guarantee build quality or reliability. I think Hyundai automobiles have the longest warranties.
More internet anecdotes. Let me offer one in return: I use OCZ Platinum DDR3 DIMMs in my Nehalem box. All six slots of all three channels filled, 1600MHz 7/7/7/24 1T timings spec running at 1704MHz 7/7/7/20 1T. 100% stable.
I have to hand it to OCZ's CEO, Ryan Petersen, I never thought he'd turn the company around in the way that he did. When I first met Ryan around a decade ago, he wanted to know why I wouldn't allow him to advertise OCZ on AnandTech. The company at that time had an extremely bad reputation. It was among the worst I'd ever seen. It was so bad that not only would we not review their products (memory, at the time) but I wouldn't allow OCZ ads to run on the site. Although all advertising on AnandTech is handled through a third party, I still have the ultimate say on what ends up on the site. Back then, OCZ wasn't allowed.
Hyundai doesn't have the longest warranties nor are they anywhere near the bottom of build quality (quite the opposite in fact) in any recent surveys so you might want to choose a different example like land rover or something.
It's not free for WD to add 3 years of warranty so it might well be worth it for them to do extra QA on black drives.
length of warranty does not magically equate to better reliability...it is only perceived as better with no quantitative proof.
I don't know what controller's in that Cruical drive, but the Samsung is great from all of what I've seen around the web. Pretty cool to have a drive where all of the major electronics is sourced from the same manufacturer. Controller, RAM, NAND...I'd also recommend Crucial M4 or Samsung 830 without worries.
Aye! NOTHING beats a SSD. There's simply no contest. My SSD is old now (by SSD standards anyway), it's the original Intel SLC 60GB drive, but it's still lightning fast. Only bother is it's so small I have to keep my Steam game library on a HDD; it starts up pretty slow when you have upwards of 150 games installed...I believe there's no better upgrade for the general feel of a system. Even a relatively slow one will do wonders compared to a HDD.
Actually, that's exactly what the idea behind better reliability is, if engineers in the company have sufficient enough data that the MTBF is longer, they should extend the warranty.
That's why you have cheap chinese products with no warranty at all, others with very short warranties such as laptop power supplies, or batteries and something really durable like some hard drives with 5-year warranties.