Because the condition values are based on the category chosen, when no category is selected yet, we can only show the values that are common to all categories (“New” and “Used”). You are requesting that we show all possible conditions for all categories which would have several problems. First, the list would be very long. Second, if you chose a category that didn’t support the value we would have to remove the selected value. Many of the options are similar in different category, so in many cases users would have no idea which value to use.
Your best option might be to set your default category on your default item template so when you make new items, the category will already be filled in for you.