I'm curious, how do you audition the S3 without owning it? None of the shops I've ever been to would allow me a hands-on aside from the exceptional (protected) stand, much less let me put music on it so I actually have something to listen to, or install my player of choice (Poweramp) so I can use the EQ or whatever (and forget about Voodoo).
Obviously you wouldn't be able to install your music player of choice, but here at least most stores would let me try one out with my own headphones. I'd just take in a USB OTG cable and a flash drive, although I'm sure most stores would also be happy for me to pop in a flash card too. Alternately you could ask one of the many existing owners to try theirs if you knew anyone with one. Sorry to hear the shops where you are suck so hard.