Not buying remorse

Do you ever think about the things you wish you bought, but didn't? And then all you can do is think about how you should have bought it, but you can't now? Either for the money, or that you have left the place that sells it? I mean, like in a different country...and no matter how much you search online in shops or ebay, you can't find it. You think about it, and think about it, and it makes like a hole in your stomach? And when you think you are finally over it, you see it in a magazine or on a blog, and then the long, drawnout, sad and heartbreaking process starts all over again?

Or is this just me?