Ulta Beauty stock (NASDAQ:ULTA) has dipped by about 20% year-to-date. Yet, the more it falls, the more I am inclined to buy. As the leading specialty beauty retailer in the U.S., Ulta Beauty continues to deliver strong results. Although its sales growth has decelerated recently, scaring investors, Ulta remains highly profitable. Further, the company returns capital to shareholders aggressively. Along with shares trading at an attractive valuation, Ulta appears to have substantial upside potentia