Well, for openers that $200 for bullets would be better spent on a mold, lead pot and ladle (after all, this IS a casting forum!). A simple Lee setup along with a couple of sizers would let you use the same mold for several .30 caliber rifles...use the change to buy accesories.
I'm like you. I want the most bang for my buck, so I cast. As far as powder, any of the major online distributors usually run specials on powder/primers so it's just a matter of keeping an eye out for them. I think prices will come down a bit once the current "feeding frenzy" dies off.
Believe me, the satisfaction is real. You'll be happily blasting away while your buddies tremble at the thought of shooting their expensive "drug store" ammo!