@Jer***
, I think you're still not quite dialed in to just how many back-2-back 30 day visa exempt entries (plus extensions) a person can get without being grilled by the immigration officers when you enter the country.
While there in theory is NO limit, believe me in practice there is a definite limit to the number of them you're gonna get into the country on.
Some people skate thru and some get read the riot act by passport control comin' in on their 3rd or 4th 30 day visa exempt entry.
It's not quite as easy as you make it out to be :/