But the best cheap guns of all are used guns. Lunatics like me sell wonderful firearms for all sorts of inane reasons, and you can profit from our folly. I recently put a rifle on the market for $500 which would cost nearly $3,000 if you bought it new today. It's 20 years old and has had serious usage, but it's still a $3,000 rifle for one-sixth the price. And, oh yes, it's been sold.