The RadCity 3 Step-Thru and RadCity 4 are currently $200 off until June 30, 2022: https://www.avantlink.com/click.php?tt=ml&ti=1027437&pw=267305
I do expect that these models will be updated sometime this year (though I have no inside knowledge)
Using the link above helps support the forum - Thank You!
Those models have already been updated. Rad is probably just trying to sell out of existing legacy inventory.