if you are like most people, you will not stop at having just one gun.
Having only one firearm will seem just plain wrong after a while. You are going to buy another gun sooner or later after your first gun. And if you doubt what I say, then let's see what other folks say. Maybe start a new thread and ask folks how many of them own just one gun and aim to keep it that way?
BTW I started my collection about two and a half years ago - I've purchased 13 different firearms since then. Nothing in a .40 caliber..not yet anyways.