I don't care if it added 200# per corner, i'm going to put on the wheel/tire combo that I think looks the best and suits my needs. If it wears out a suspension part or brakes prematurely due to added weight, big deal, i'll replace it. One of the OP's concerns was re-gearing and the speedo being off. I was simply telling him that it won't be "off a lot". And i've had enough trucks in my lifetime to know that the OP will feel little to no difference in power, especially when only going to a 35" tire.
But hey, you're more than welcome to keep your physics and your papaw looking 17" factory wheels and tires on your truck.