Hi Bucknekked,
As with all technology, if you personally can't derive a benefit, then don't waste you time or $ on it. If there is a perception of value, then explore it to see if it's worth it to you. (So even if you can hear the difference with FLAC Files, it may not be worth the bother and extra space.)
I know all kinds of folks, and some buy computer components, audio equipment, boats, and even cars just because someone said it's "cool". In my youth I used to "overbuy" my Audio components so I'd have "top of the Line" bragging rights. (Of course there were lots of times when we never even used half the functions we paid for.)
As I've mellowed my focus is now on fitting the equipment, components, source material, data, etc., to the duty it will see. It's not that we can't afford to spend that much, but it's such a waste and any moron can just throw money at a problem. So if you are sure you don't gain any value from going to FLAC Files, I certainly don't want you wasting your time and $ on it.