We are in the same boat. $15 a day for roaming out of country… we tend to leave the phones at home when going to the beach and check on messages and missed calls when we have a wifi. If you need access to the phone 24/7, then you bite a bullet or get a local SIM card. Last few years our daughter decided that she is an independently wealthy and can afford $15 a day charge so we just used her cell phone as a Hot Spot to get the wifi data….
It’s not like we can’t afford this $15 per day charge- we are spending way more than that for a breakfast every day while on the island- but rather an act of rebellion towards our beloved cell phone providers….