New Orleans is about live brass on Frenchmen Street, hot beignets at midnight, and some of the best food in the country. If you want the full experience without paying peak prices, late summer or early December right before holiday rates spike gives you smaller crowds and lower hotel rates.
A solid long weekend here usually runs around $1800 for flights, lodging, food, and music. Instead of draining your savings all at once, you can spread that cost across more than a year without paying interest.
Keep in mind that 0% intro APR is not free money; it is a strict deadline. If you do not pay off the full $1800 within the 15 months, the regular variable APR kicks in on whatever balance is left.