A longer warranty is good to have. No arguments there. However, you can't use warranty to gauge the quality of parts. That's like saying "This item is cheaper than the other item, thus it is clearly of lesser quality."
As an example, Kingwin Lazer Platinum power supplies come with 3 year warranty while Corsair low wattage AX (eg not AX1200i which pretty much blows anything out of the water) come with 7 year warranty. Arguably, the LZP units are superiour in quality despite having lesser warranty.
As for risk assessment, if Seagate shit has 1 year warranty, you'd expect it to be cheap to match. If it is, then why you should bother (or not) is obvious.
Reviews on the egg? 99.9% of reviewers on Newegg do not know what they are doing. Case in point, since I like power supplies so much, the majority of power supplies below 25 dollars in price have 4 egg ratings and a few have 3 eggs. There is nothing below 3 eggs. Nothing. And practically all of these with a few noteable exceptions are harmful to your computer and unreliable. I mean come on, when items that are provably destructive to equipment connected to them are getting above 1 egg reviews with the only complaints being people who got the unit "dead on arrival" then you know something is fucked up. People claiming high tech level are rating these piece of shit 5/5 or complaining about irrelevant bullshit like fans being noisy.
You know what, I'm gonna rant about this some more. Here is a quote from a review: "To all those folks that knock this power supply unit, you are going to wish you had one laying around to get you onto the internet to use newegg to order a new one if YOUR power supply DIES unexpectedly! That reason alone is good enough to keep one of these guys around." 4 fucking stars.
That particular piece of shit couldn't even power on my system let alone get it far enough to let me order a new one on Newegg. God damn...
and if I connected my equipment to it, I'd be replacing every other part as well, not just the power supply.
This fucker had the audacity to claim his "tech level" was exceptional.
Oh man, I am hating myself pretty hard for going over to newegg comments after a long time of ignoring their existance.
Here is another fun quote on topic of power supplies: "What is even worse is that it doesn't weigh more than a few ounces. What that means is that it is completely solid-state (no transformers.) That could be a good thing except that due to it's light weight there is no way that it can have adequate cooling fins for the rectifiers/transistors/CMOS chips."
I can barely contain my rage. I hope to god that's a troll, thinking he's all hilarious and shit.