My older brother started reloading back in the late 1960s to feed his Ruger Blackhawk (I was still a little kid). My best friend and I used to "borrow" some of his Unique or 2400 to, uh .... burn stuff. So I guess that was my first contact with reloading.
Fast forward to 2010, I started reloading for 9mm, 38/357, 45ACP, and 30 Carbine. For the classic mix of reasons (cost, fun, ability to customize) - and also because my brother had told me reloading would help develop my understanding of firearms and their operation. He's right! He keeps nudging me to get a chrony, but for my purposes (plinking and informal competitions), it's really not vital. And I'm still very happy that I met my goal of acquiring my basic set-up for less than 50% of the cost of new by buying used gear. My stuff paid for itself very quickly.
So I'm pretty new, especially compared to the distinguished reloading veterans around here (hey, where IS rcmodel, anyway?). One thing is fun to note: on THR, the bulk of my time and my "first checked" forum quickly became this one after I caught the disease, er, started on the hobby. And not for the first time, I'd like to salute THR and the reloading vets here for their great insights and useful info - first hobby/activity I've ever had where interaction with an online community has played such a large role.
Don't cast, don't really plan to start any time soon. Good cast bullets are still fairly cheap and available, from multiple sources, and I can't devote more time to reloading than I already do.
Random closing thoughts ...... I've never been a consumer in a market where the vendors are as responsive and quick to give you something for free as in reloading - it's pretty amazing. Very few problems so far, but all issues seem to be resolved quickly and usually for no cost. And some day I'd like to have the time, the real estate, the opportunity, and the sense of adventure to experiment like Clark ..... til then I'm thrilled with reloading and, like many here have observed, it's become an integral part of the fun of shooting.