An investment property you buy with your brain, with logic. You make the numbers, if it makes sense, you go for it. If it doesn't make sense, you skip on it. A primary home, a home where you're going to live, you buy with your heart, with emotions, what you like, what you don't like, where you like, what you don't like. You might even overpay if you like the property. The problem becomes if you buy an investment property with emotions, then it can go really really bad.