(Not replying to you directly, but generally to this thread)
In contrast, I can get 6 FEP sheets for my Mars 2 Pro for $21 which don't appear to have any official lifetimes but generic internet advice says "40-50 prints" on the low side. That'd be 240 prints for $21 compared with 190 prints for $79.
[0] https://www.igo3d.com/en/formlabs-form-studio-1-resin-tank-p...
There no reason for FormLabs to limit supply of the $79 tanks, it would also limit their ability to sell their more expensive resins to Studio 1 customers, and also removes a clear pathway to get people to upgrade to their more expensive machines, capable of working with their even more complex, and expensive, engineering resins.
I'm not saying I hate Prusa here, I'm saying that limited availability is a common practice to drive hype.
Versus a company like Bambu who seems to ramp up production now, in advance of selling the product.