There is currently 1 other woman on death row and I don't think the appeals process in Florida is as slow as it is in say for instance, Cali.
In the end, if she is convicted with the DP being issued, IMO in the longrun it will be cheaper than housing her for what could be a very long time...she is a very young, healthy 23 year old after all.
Good point
She'll still have more years wrapped up with the appellate courts than Caylee had in life.