If you're thinking about purchasing a vacation home, there are a few important things to consider before you take the plunge. For example, will you rent it when you're not using it? If so, how many days a year? Be realistic about the income you can expect to derive and your costs to maintain the property. Renting has tax implications too, so be sure to consult a tax expert before signing on the dotted line. Watch the video for more second-home-buying tips from real estate expert Ilyce Glink.