From what I've seen recently, Lego Ideas sets tend to have a lifetime of about 1-2 years, but can become harder to find later in the cycle as I think their prod

From what I've seen recently, Lego Ideas sets tend to have a lifetime of about 1-2 years, but can become harder to find later in the cycle as I think their production runs are a bit shorter. Regular models tend to be 1-3 years from what I've seen. I believe if you have a Lego account and show some interest, maybe liking or adding to cart or something, they send you a notification when it's retiring. I've had a few "retiring soon" emails from them but I'm not sure exactly what triggered that.