I've visted Colorado many times and each time I discover something new to love about the state. Go visit and if possible, try to hit the Springs, Denver, Longmont, Fort Collins, & Estes Park. You will love every minute of your visit there. If the scenery isn't enough to move you, the people will be! Have a fun trip.
Well it appears that the Colorado folks have given some excellent reasons already! I was just going to post that you cannot match the breath-taking beauty of our mountains this time of year, the aspens are changing color, the peaks are getting snow, and there are always spectacular views to behold. I've been around and the awesomeness of our wilderness is very hard to top. Not to mention all of the fun to be had in the mountains, whether you want to try to break your 4x4 trying the trails, or break your leg on the slopes, or just take it all in and pick up some cool memories in the process; Colorado is the place to do it.