I really don't understand why anyone would want HDD in their laptops anymore.
HDDs are best bang for the buck if all you want is raw storage capacity. But not too many people would be constrained by Terabyte-sized SSDs. Get an external drive or archive backups or start dispersing junk in the cloud if your computer is being crippled by low drive space.
SSD speeds completely outclass HDDs, even the cheapest and puniest of last-year's bargain blowout SSDs will vastly outperform the mightiest and most majestic HDD. "SATA 150MB/s" vs "SATA3 600MB/s" is everything you need to know without even looking at specs for the drive itself.
SSD power efficiency is greater by orders of magnitude. SSD-equipped laptops generally have triple the per-charge battery life of their HDD counterparts. The fact an SSD weighs a fraction of an ounce (vs a barometrically-sealed metal box filled with fragile spinning magnetic platters and servo motors) is just gravy in a mobile device you have to lug around.
Tumbling NVFlash lifespans/longevity are exaggerated. A real problem when introduced last decade, now a mature technology full of self-correcting failsafes - your SSD will indeed start getting older and smaller and slower from the very first day you plug it in, but it has statistical failure rates better than any HDD and will still provide about a decade (or more) useful service life - chances are your entire laptop will be obsolete long before SSD failure becomes a real concern. All the big enterprise machinery runs on flash now, and if it's redundant-backup-reliable-secure-and-safe enough for the mighty megacorporate data mongers then it should be good enough to store a puny collection of games and movies.
So why would any laptop manufacturer in today's world even bother to sell an HDD-based machine? Cost savings exist, but they aren't economical - you save a trivial amount by sacrificing a lot of valuable advantages, save 20 bucks on a $1000 purchase and end up with a machine that has half the performance. And seriously in a gaming-class performance laptop??? It would be like saving a couple hundred bucks by having them install a Toyota engine in your million-dollar Rolls.
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