Since these two events happened so close together, I was able to compare apples to apples to see what is better: and item feature or a treasury feature. Hands down, it's having an item featured. And being on the front page in any form beats renewing items often which is what I was doing a lot of in early to mid December. Click on the Google Analytics graph above to see what I mean.
Ironically though, it was the constant renewing in December that resulted in actual sales. That's December versus January for you!