Key PointsShares of the luxury furniture company sank after Q1 results and lackluster Q2 guidance.However, big bets on Europe and an ultra-high-end brand extension could fuel growth. 10 stocks we like better than RH › The past five years have been a difficult stretch for the stock of luxury furniture company RH (NYSE: RH), which is down more than 75% in that span. The home furnishing industry has been hit with a perfect storm of prior demand pul…