Okay this is a bit general or spread out because the concept wasn't relevant to me before so I never paid attention... When you do a border run (ground - Chiang khon to Laos .maybe) do you not need a visa to enter Laos? What is the cost for just turning around to come back? I've been building up to a trip back to the US after finishing my education visa but it is starting to look like it might be much better for me to stall that for a month. I'll be coming back after either way as "Thailand is my home now"
I've got crap to do in the US regardless, it just might be a more productive trip if I push it back.
TLDR : Answer Summary
When making a border run from Thailand to Laos (e.g., through Chiang Khon), you must obtain a Visa on Arrival (VOA) for Laos, which typically costs between 1500-1800 Thai Baht depending on the crossing point. It's important to note that you cannot simply turn around after entering Laos; you are required to complete the entry and then exit Laos before re-entering Thailand.