You want a mirrorless camera with a versatile kit lens that handles everything from street shots to low-light indoor video. This is the kind of gear that should last you a decade, meaning you buy once and learn the glass instead of upgrading every year. The trick to keeping the cost manageable is letting other people chase the newest release.
Camera brands announce updated bodies on a predictable cycle, which is when the previous version suddenly drops in price. We wait for those announcements so you can grab last year's model at a steep discount while it is still brand new in the box.
Keep in mind that the 0% intro APR for 15 months on purchases and balance transfers is a hard deadline, not free money. If you still have a balance left when those 15 months are up, the card will charge you deferred interest on the original amount, wiping out your savings.