State Rights: Pathway to Progress?

Being that the USA is so large don't you think the State Rights mindset/movement would be more beneficial? For example let states who prefer a larger or smaller welfare states and regulations have local control? Let the state provide all the monies needed rather than Federal gov. Show that is a successful model which could be replicated on a larger scale? I feel like there is a missed opportunity for experimenting to find the best way to govern.