For freedom. 

My energy (monetary reward) I saved 4 years ago now has 4x the purchasing power. 

While it seems about on average that stuff costs twice as much (since 4 years ago), I can get twice as much. 

In 4 years, then again in another 4… and then…. Exponentially winning. 

I work less (for myself to boot) and am rewarded more - also having more free time. 

This is freedom.