And this is it right there. There are known flaws, fine I don't expect a Mk4 for free to replace my Mk2. Just give me something.
It would be super cool if Passport would somehow add option of loading their source code on older coldcard devices, that would piss off NVK very much 
In reality, you can use mk2 and similar old devices only as collectible items, use them for spare parts, or just recycle.
The same limitations that exist with the coldcard firmware would exist on the Passport firmware or the DaveF & dkbit98 firmware.
But yes, I have them somewhere and sooner or later will remember to bring them to the e-waste recycling place.
It is what it is, they don't care about old users and just want to sell new HW at full price, that's fine it's their business they can do what they want. I just don't have to give them anymore of my BTC
-Dave