Just got this email from Captain Sim:

Captains,
Time flies. Captain Sim is 20!
Any anniversary discounts? You bet!
On the 20AUG at 2020Z, just 20 hours 20 minutes, everything is $20.20 at https://www.captainsim.com
Stay tuned,
Captain Sim News

Just fyi, although I don't know if there's that many CS P3Dv4 models available. But I'll take a look.

-RobM