My apologies for my previous post's phrasing, I just meant to ensure others were aware that the sd2vita you linked to was the same as those available from ali/elsewhere. The price in your listing seems reasonable.
They are premium in the sense they have a proper plastic casing compared to earlier bare-pcb variants, but as gnmmarechal mentioned the failure rate on the black plastic red text versions is still pretty bad from peoples reports here, on /r/vitahacks and elsewhere.
The black plastic white text versions have an even worse failure rate, personally I'd say avoid those and the earlier bare-pcb models. Of the currently available options the black plastic red text, or the newer white plastic models are recommended. The white plastic ones havent really been around long enough to gauge feedback from people regarding their quality/failure rate. The shape of the top of the white plastic version should allow the cart-cover flap on vita 2000s to close properly, on the black plastic versions you have to file the plastic down a little.
The white plastic ones are also a fair bit cheaper, eg
https://www.aliexpress.com/wholesale?catId=0&SearchText=sd2vita+5.0
I've got a few of the early ones, a white text and a red text one, and a white plastic one on the way.
The white text one was faulty and I had to get the seller to send a replacement, I've had no issues with the red text one personally.