Thailand in November hits that sweet spot right after the monsoon season ends. You get cooler evenings for wandering the Chiang Mai night markets and clear water for the southern beaches before the peak December crowds roll in. It is the best time of year to go.
A typical trip runs about $3200 for flights, food, and a decent place to stay. Breaking that number down into manageable chunks makes the whole thing feel a lot less heavy on your bank account.
That 0% intro window is a hard deadline, not free money. If you still have a balance left when the 15 months are up, interest kicks in on the whole original amount.