Eating is more important, but if I'm not mistaken, Pet Smart only sales 'male' animals. That could be referring to the rodents though, but I was thinking it was for everything as they don't want people breeding unless they WANT too. I could be totally wrong in that though.
As for eating, I had a new one that didn't want to eat F/T. Offered a live, and it was full on then. I do plan on swapping over to F/T at some point when he gets a little bigger, but right now I just want him eating.