The linked drive is a pcie3. Look at a PCIE4 drive and compare price. I just bought a Sabrent 2tb for my PC and it was over $400.
Sabrent isn't even a trustworthy name in SSDs.
SSDs are sketchy too, you've got to get a good name or you risk your data, it's a wild west. I'd only spend money on a Samsung, WD, Seagate or other big brand name SSD with a legacy of being reliable.
It's going to be expensive to buy a reliable SSD at the specs PS5 requires.
The fast PS5 storage is limited to 825GB, and gamers will need to upgrade it via compatible M.2 SSD drive solutions that meet Sony’s speed …
bgr.com
The 980 PRO SSD will come in several sizes, starting at 250GB and going all the way up to 2TB. Pricing starts at $89.99 for 250GB of storage and goes up to $229.99 for the 1TB model. The 2TB version will be available later this year.
So the initial price of the MS 1TB SSD is pretty inline with other products of similar spec, you have to remember that this is proprietary on top of that which also adds to the "tax" of a factory having to bend over backwards for a custom product.
The edge that Sony has is that you CAN buy a jank brand if you want and no doubt the Samsung drives will go on sale all the time.
When considering a JANK SSD for your PS5 you need to REMEMBER that these things GET HOT, so a JANK brand might change the thermal profile of your machine drastically. Hell, even a NON-JANK one will change the thermal profile from stock to something different, Sony might have considered that.
Sony’s Mark Cerny
said in March that it will support “certified” M.2 NVMe SSDs
PS5's can probably reject non-"certified" brands possibly preventing jank brands. Although, the PS5 CERTFIED drives might be more expensive, but necessary in a PS5.