HP CM8060 / CM8050 coated vs. plain paper costs

How does paper cost compare when looking at stock to get current color-copier quality out of a CM8060? Is plain-paper with this line inkjet for office-printing only and do you need better more expensive coated paper to print photos, graphic solids, etc. with top quality? How do stock costs for this inkjet compare with hammermill/wausau/mohawk color copier paper costs?