You want a high-speed drone with a 4K camera that actually captures sharp footage without stuttering, and you want it to last for years so you aren't buying twice. That means looking at build quality, wind resistance, and sensor size before you look at the price tag.
Before you pull the trigger, check when the manufacturer drops new models. When a brand announces the next version, last year's drone usually drops in price by a few hundred bucks while keeping almost all the performance you actually need.
Keep in mind that the 0% intro APR is a hard deadline, not free money, and any leftover balance when those 15 months end will get hit with regular interest charges.