Kelley Blue Book’s Senior Managing Editor Matt DeLorenzo writes This Week in Car Buying, a weekly column on KBB.com. In this week’s article, Matt covers the latest pickup truck sales promotions as truck wars heat up. January sales dropped 2 percent, year-over-year. Matt reports that Cox Automotive Chief Economist Jonathan Smoke suspects some of that drop is attributed pull-ahead sales, but another culprit may be declining incentives. Coupled with the slowdown in sales, sales’ supply has climbed to a 5-year high at 88 days. And, the article highlights the best deals for the month of February.