If you start reloading, it will make you shoot more, and that will probably make you a better shooter. I haven't calculated exactly how many rounds per year you'd have to shoot of a certain cartridge for reloading to be cheaper, but it's more than the majority shoot. It also depends on your methods and behavior; if you're like some of us who enjoy doing endless load development and you're intrigued by every new bullet or powder or case prep method that you hear about, and you constantly switch cartridges or rifles, you're going to end up with shelves full of half empty powder jugs and bullet boxes that all represent dollars spent. If you are able to settle on one load per rifle, stock up when your stuff is on sale, pick up range brass, and load hundreds or thousands of rounds of that same recipe over many years, your cost per shot will be very low indeed and you won't have a ton of components sitting idle.
Neither approach is wrong, but if you go the route of constant change you'll spend some more money.
Start with a basic kit, and when you can, I'd add a power case trimmer and a tumbler.
My biggest years were probably around a 1000 rounds for rifle a year, now less rifles and less $, a couple hundred. Days of loading to save money are mostly gone, but things like 8x57 are joke at the store and reloading makes the most sence. The actual reloading takes very little time, brass preparation does. Should you choose the accept the depth of the rabbit hole, my advice is to try to collect 3+ times as you need. As I shoot over the year I just dump them into a bucket, then on the winter days when nothing is happening I'll pour a cup of coffee and do 1 process a day-ish depending on how much there is.
