Fuzz Face plethora


I've purchased just about every Fuzz Face imaginable to finally find one that doesn't ruin the tone of my guitar or has way too much fuzz drooling from it. I've settled with the BOG mini version and the big blue silicon BC 108 Jimi Hendrix signature version. These 2 sound the best out of all the ones I have.
My question is, does the big Band of Gypsys version, the one for $600.00 sound any better ? Why such a huge price increase between the 2 ? Aren't they the same pedal ? Ones just more compact, right ?