I did a quick calculation the other day and at my current usage, I have enough powder for the next 15 years. Primers and bullets-not even close. In 15 years, I'll be 73 and as much as I would like to think I'll still be around AND still shooting; well you never know.
So even though I'd still like to buy more powder, it just doesn't seem to be the thing I need to do (IMO). I am going to concentrate more on primers and bullets; in order to catch up with my supply of powder. My plan is to have enough supplies in 7 years (retirement) that I can enjoy myself with little-no cash outlay for ammo/supplies. That's the plan, anyway