HomeAway, a vacation real estate rental service, is bucking the investment trend and has raised a $250 million round of financing. That pegs the company valuation at $1.5 Billion, with revenues hovering around $150 million. The company, which has grown through acquisition, is expected to use the investment to continue aquiring competitors — although some question just what competitors are available right now. Some of the infusion of capital will also be used to cash-out initial investors. Nice deal for them.