Are you up for a promotion that would send you halfway across the country? Have always wanted to live in a grass hut on the beach halfway around the world? If either of these is the case in your life, now may not be the time to buy.
You'll want to examine things like the market in your area. Are home values rising, and how quickly? You may pay closing costs when you buy the house, and perhaps be asked to pay them again when you sell it. And the thing about home mortgages: Most of your monthly payments for the first few years cover the interest. You don't make much headway on the principal for a while, which means you aren't building up equity.
The bottom line is this: Even if you live in a buyer's market now, you may not be able to make much money if you try to sell your house within the first few years. On the other hand, if everyone from your great-grandparents on down has lived in the same neighborhood and you aren't about to break with tradition, now may be a great time to buy a house. Look for a home that can grow with your family – or at least accommodate all the family members in the neighborhood who will be dropping by.