https://www.buyapi.ca/product-category/raspberry-pi/raspberry-pi-boards/current-pi-boards/
Ranging on price from $47 for the 1G memory board to $74 for the $74 board, plus $11 shipping.
Oops! Showing they are currently out of stock, when you go the the specific item, page. They do have some RPi 4 kits, in stock.
I’m in no hurry, but I like the idea of making a geek trip to the same store we bought the 3B’s at. I can wait till they get them. I’m inclined to buy the 4gb.