@Giulio ******************
. As has been pointed elsewhere in this thread, a border run gives you 30 days from the date of the run, the immigration office gives you thirty days extra from your original expiry date. If you are now in a city with an office, it's a no-brainer. 1900baht and a few hours out of your day v organising travel over a border convenient to your location which will be more than a few hours