If it was 13 points in 2006, you can pretty much plan on 14 this year, and 15 next. You will have to wait until all those with more points draw out ahead of you. Somewhere in my research last year I found a listing of the breakdown of the number of people with each level of preference points. Find that information, and compare it to how many tags are given out each year, and how many people would be applying for them. Sure, some people may not apply for tags even though they have enough points, but I wouldn't imagine very many would pass up a chance to hunt after waiting so long. For me the math worked out to where I could have been well into my 60's before hoping to draw a tag in 61. Units 2, 10, 201, etc. were completely out of reach.
One somewhat good thing CO did in 2006 was to only take as many points from you as were needed to guarantee a tag. So if you had your 13 points, and applied for a unit that only needed 10, they would leave you with 3 "in the bank" for future use. Not sure if they are doing that again or not. Sounded like it might have been a one year thing, but may have been extended.