I love steel matches!
I try to go at least a couple times a month to the one in my area.
I race the clock and my own times, more than the other shooters. I've got some PHENOMENAL shooters that show up at mine. The same course that I run in 90-100 seconds, will get run by these guys in 40-45 seconds.
You'll spend money, Aaron. Don't worry. You'll spend money.
More mags, a holster (not necessarily a "race" one, but just a sturdy carry holster), mag carriers, a belt, sights for your pistol. And ammo. Lots of ammo.
Things like this teach you exactly how small a case of ammo is.
Pretty soon, you won't feel cozy unless you have at least a couple thousand rounds standing by for the next 8-12 weeks of shooting.