As in the stock market - Buy low, sell high.
If we are not at the bottom of the market we are close to it and certainly closer than 2-5 years ago. Loan rates are at historic lows and buying now, if you can afford to, just makes good economic sense. Remember, the only way to determine the bottom of the market is to look back at it, meaning it has already passed. Take advantage of the low prices, low rates and large availability of homes to choose. Add in the tax advantages and you will find it is a great time to be a buyer, bad time to be a seller.
Go for it - stop helping out your landlord.