As I said above, I have most of the UA plugs: a few bought secondhand, but the majority bought on PA intro or sale with $75 vouchers.
Let’s say Lion is $299 list and 40% off on intro (making $179), and the UA “micro” sub is priced midway between the Maag ($6) and the Brainworx ($13), that would mean perhaps a year and a half before it’s cost me the same purchasing on discount. Presumably UA will release another plug in that time frame, and so the counter would be reset, and so on.