Ending in November the overall Denver area inventory continues to drop.
The decrease in inventory in part is seasonal. This time of year it is very normal to have homeowners take their homes off the market or wait until spring. For buyers, it's frustrating to have less inventory. Most buyers would prefer to have more to choose from.
The reality is if you are an owner wanting to sell, now would be a good time to put your home on the market. With the lessening of inventory it is easier to stand out.