Amazon has the green plate for the same price.
Also works with LEGO DUPLO blocks.
Target has the LEGO 70424 Hidden Side Augmented Reality (AR) Ghost Train Express (2019 set) on sale for $80 - $20 off automatically in cart = $60 with free shipping.
Contains 698 pieces and 5 minifigures. The Hidden Side mobile app adds digital interaction with the LEGO playset.