I have only been shooting for a couple of years and was apprehensive about reloading as well. Once you get going it is easy, you just have to pay attention

I reload 9mm, .357Sig and .45 without any trouble now.
Here in Australia .40s and .45s were confiscated in a government buy back in 2000 or 2001 (can't remember exactly, before I was shooting) and .45 brass is rarer than rocking horse poop as a lot of people sold it for scrap. The government bought back complete guns as well as slides, frames, barrels, reloading presses and dies but not brass.
The only way to get anything greater than 9mm/.38 but less than .50 is to get a high calibre permit. The only approved matches for high calibre permit holders are metallic silhouette and cowboy action so I drive an hour each way four times a year to shoot metallic silhouette which allows me to have my .45 Norinco 1911A1. If you have a pistol license you have to shoot a scoring match 6 times a year in one category (rimfire, centefire, high calibre) and four times for each subsequent category. My club shoots a match every week so its easy to meet the requirements except for the high calibre match which we aren't approved for.
Once fired .45 brass is about $AU30-35/100 if you can find it and ~$AU50/100 for new brass. I have been using Winchester and Federal non tox brass with the small pistol primers. I use them because I can get them for free off a shooting gallery where my brother works and a fellow gun club member reams the primer pocket for me (for free) to remove the crimp that the non tox case have around the primer.
Reloading .45 costs me:
Primers: Federal small pistol $AU50/1000 or Magtech $AU35/1000
Projectiles: 230gn lead round nose $AU52/400
Powder: $AU47/pound for AP70 which is made by ADI, a defense contractor, here in Australia. A pound will do about 1300 rounds.
With the free brass and using Magtech primers which I have had no trouble with reloading costs about AU20c/round. Factory costs ~$1/round and that is if you can find any that are lead projectiles as almost every club prohibits jacketed ammo.
$AU1=$CA0.93