That wasn't the question.
No, but it was still the best answer. It's just reality for you.
Why are they so cheap ??.
Did you read the page? "Type for several years before buying a new one."
Do you not feel truly inspired and confident when you read that?
The page says "Alps Mechanical Key Switch". Considering that, to most people, "Alps" means everything from 1980s blue Alps all the way to Omron, KPT, and anything else that takes keycaps, I would be careful about making assumptions.
While it's alleged that simplified Alps switches are still made (Datacomp apparently bought the tooling from Forward, but I can't get confirmation from Datacomp), I would not automatically assume that Solidtek are using Datacomp switches. Moreover, I have no idea how well made these switches are now. They may have been retooled, as Forward had to remove all the Alps branding a few years back.
Don't forget that Matias lie about this too: the Tactile Pro page says "Mac users who crave the feel of the legendary Apple Extended Keyboard will love the Tactile Pro. Unlike other keyboards made today, each key is built on an
individual Alps Mechanical Switch."
That's nonsense. The switches are assembled from parts made in unknown factories by Dongguan Gaote, to a design very similar to simplified Alps. Even if the design is superior to simplified Alps, it's still not an Alps switch.
Sadly I can't find a photo of the switch in that Solidtek keyboard.