I think it all depends on the quality of the animal, the particular morph and what your personal goals are, different things are worth different amounts to people. sometimes the 800$ or so increase makes sense when you factor the 2 to 3 years a breeding size animal has been kept and raised and fed.
Generally a breeder size of any morph with be considerably more that a juvie or baby cause of the time ti take to raise the animal.
...recessives usually on the higher end of that, folowed by breeder sized supers and codom combos.