Something artists do not like to think of when making art is how much is it costing me to make art? Granted I spent most all of my travel budget to London, Amsterdam and Paris on paint in the London Windsor and Newton store on a trip years ago and still have one or two of those tubes left. Other than that I am always buying new paint.
Paper: $200 worth of full watercolor sheets on hand. Many other sizes of pads and blocks of paper to paint on.
Paint: Watercolor professional grade Windsor and Newton
$1000 worth of watercolor tubes are always on hand. Much of watercolor painting involves putting pigment down and then removing some or nearly all of it while still wet- not very efficient but that’s how it is.
$250 worth in Prismacolor pencils.
$150. in watercolor brushes on hand (some are dead and just keep for the memories)
Other stuff I am using during painting process- paper towel, soft erasers, vine charcoal, pencil, digital camera, computer, prints of photographs.