Most stores are unwilling to carry supplies for artists at reasonable rates. Everyone is willing to pay for professional quality - if they need it.
Canon and Epson are known for their professional quality paper and printers. Canon has perfected the art of creating pico sized dots which create some of the best reproductions that you can find.
Epson also has focused on high quality prints. As well as improving their scan mechanisms.
If you are looking to have your prints, marketing, and other projects stand out. You should look at the Moab Slickrock Metallic Pearl paper.
Specifications
Brightness 80% ISO
260 gsm / 12 mil
Opacity > 97
Resin Coated
Acid Free
Single Sided
Water-resistant
Pigment (recommended) / Dye
