I was about to post that to you and then I read this post! Yes, all other PV's will feel like lightweights the more you vape your Provari. The Provari is on the heavy, hefty side, but that will become normal and every thing else will feel like it's lightweight and dinky. Stainless Steel vs aluminum. Aluminum is good for flashlights maybe, but SS makes a PV last a lifetime.
My Mini Lambo 4.0 feels pretty solid to me but I have never held a Provari.