Well, I do have an all metal Kreg jig that I bought many years ago. Great tool except the plastic ones are better thought out. And I have not worn one out yet. I much prefer lighter weight, built in risers, and especially front clamping levers. I got really tired of reaching around or over large panels to apply the clamp. And I got tired of finding shims to keep the panels from tilting. And the blue Kregs have dust collection that works extremely well. Humm and the blue Kregs adjust more easily to multiple thicknesses of stock for clamping and for drilling position.
Use a tool a lot you really start to appreciate light weight.