Decisions, Decisions...

I am faced with a difficult decision at the moment regarding another race! Ugh! Some of my friends are trying to convince me to do a second Ironman this year and go sub 12 hrs!  And let me tell you, this is very tempting!  The race would be in Cozumel which I have done twice already and I think I can go sub 12 there after my performance in NY.  I just do not know if I have it in me, both mentally and physically, to push myself at that level again this year.  I pretty much gave it my all in NY and I am super happy with my results. But the idea of giving it another shot to go sub 12 is just so alluring.  I really am not sure what to do and I have to decide pretty soon.  Hmmm.....what to do, what to do?!