I can't even remember how long I searched before I
finally managed to find my first decent Leo. 
Given how common they are in the show, it's
absolutely freakish that they should be so hard to
find as cels.  All I can figure is that there's
some major hardware junkie in Japan with boxes
full of 'em.

Unfortunately, I have neither Leos nor Taurus to
trade at the moment, although I will have a mighty
spiffy Mercurius within the next week or so.  I
might also be persuaded out of a nice backgrounded
Aries, if anyone has a Virgo, Sandrock, or Vayeate
of decent quality to swap.

Best of luck on your Leo hunt!  :)