My non-immigrant visa based on retirement (extended once without issues) is due to be renewed by 14th May. I have a trip to the UK planned to return on 9th May. I then have other trips scheduled in mid June, late September and early December. So I could each time I return get a 30 day entry stamp and not need to apply for a new non-immigrant visa until March 2025. Is there benefit to one option rather than the other. I appreciate I could save 7,600 THB in re-entry fees.