@Ant **********
I simply don't meet the requirements for the DTV, but I do for the Non-O over 50s. I consider the Non-O-A option better for me because, being 60 years old, I intend to have health insurance anyway, I will return to my country of origin once a year so it doesn't bother me to obtain the documentation for the Non-O-A, and at the same time I have a year to open the bank account in Thailand for subsequent renewals.