MagPi Magazine #91 March 2020 page 6
"Thanks to falling RAM prices, Raspberry Pi 4 with 1GB is being retired; Raspberry Pi 2GB is now the new entry point to the family. The Raspberry P4 [sic] with 2GB has had a price reduction: it now matches the $35 recommended retail price of the former 1GB model. Entry-level newcomers get double the amount of RAM at no extra cost."
Anyone thinking about buying a Pi4 for a Pi-Hole may wish to wait a bit until the new pricing is rolled out...