I'm baack!!
A brief comment about Alocasia 'Boa'. As far as I know, it is (should) be in the same group as Alocasia lauterbachiana and Alocasia 'Nishishira'. These all used to be considered to be in a separate genus, Xenophya. Their inflorescences are so unique when compared to other Alocasia that I still feel that they should be kept separate from other Alocasia.
Now as far as culture is concerned, Boa is more finicky than many other Alocasias, and in some cases, much more finicky. They don't really go dormant so if yours has "gone dormant" it might have "gone south" instead. I lost a lot of A. lauterbachiana during the Great Freeze of 2010 here in Florida. My Boa was in a greenhouse so it just lost most of its leaves.
Hope this helps!
LariAnn