It sounds as if you owned a Colorado but then returned it after a short while ...? If so, keep in mind that your experience with the Colorado was with an older firmware version so some of your comparisons may be unfair/incorrect/outdated unless you compared the Oregon with current Colorado firmware.
However, your comments about your touch-screen and brightness experience are good, thanks.
I had the Colorado for about two weeks. I did have all the updates except the one that just came out. When I saw the Oregon was released I decided to return the Colorado. I had purchased it through Amazon and with there 30 day no questions asked full refund return shipment paid I thought why not. I really have nothing against the Colorado but when I saw touchscreen in the description I wanted it.