Note that saving up and buying a later upgrade does NOT save you money, and in fact buying a previous upgrade lowers the price of the later one, so the money you spend is the same. Thanks for doing that.
If anyone is curious, the room is an interpolation of the Van Gogh painting "The Bedroom At Arles" and his friend Paul is Paul Gauguin, another Post-Impressionist painter.
 "Infectonator 2"){kind=icon}
 "Cube Escape: Arles"){kind=icon}