Right now it would be difficult to buy a good beginner reloader like a MEC Grabber or 9000H, enough lead, powder, wads, and primers along with hulls to save over cheap promo loads. BUT, if you're into trap for the long run and plan on shooting registered birds at some bigger shoots, it's not a bad idea to at least start to gather some stuff now. Look for quality used reloaders, grab components when you see them on sale and always buy in bulk when you can.
I still reload because I had stocked up on just about everything as prices started to climb. People will ask why I don't just shoot the cheap stuff instead. I tell them I can't find 1 oz. #8 1/2 loads with windjammer wads that have a velocity of 1180 fps.
I do shoot the promo loads for a lot of my practice shooting and have found the 1 1/8 oz loads of #8, 1200 fps Estates work about as well through my Kolar for handicap as my reloads.
I also find reloading to be a great hobby, relaxing and fun. Just like my reloads for my hunting rifles, I get a kick out of dusting those birds with things I make.
They tell me shotshell's will increase another 15% or so after the first of the year, AA and STS's are now pushing $7 a box. My reloads are as good as these and are costing me about $3.60 a box with what I have on hand. To date this year I've reload approx 14,000 round so I figured I've save alot even if it's less than 50 cents a box.