I totally agree with bdegagne and mrclean. You won't lose many cases, if any. I shot almost 10,000 rounds in one year (2006) and I think I lost maybe 6 cases to splitting during reloading.
You will get all of your cases back during matches, so once you invest in the brass, it will last a LONG time.
If/when you choose to shoot a revolver, I suggest you commit exclusively to either small or large primer brass. From my experience, small primer brass does not need as much force to set off, ie, lighter trigger, but large primer brass is easier to come by. Also reloading is alot simplier with only one size primers.