Good point. It still depends on how you intend to set up at a given show, however. If most of the time you're going to be setting up on stage or at stage lip, go with the CSBs in this scenario. However, if your choices will be stage lip or in the audience, then I'd go with the Church cards.
So Church mics can still work for your purposes unless you'll actually be setting up on stage right next to the artists. But if not you'll generally have more range - if you want to record a high spl show, you can. Plus you'll get great results with them setting up at stage lip.
The beauty is, the choice you need to make is a really nice problem to have. Additionally, at the price range you've got and the price range of these mics, you should be able to pick up both pairs of mics within the next year or so. Then you can do some great comparisons of how the two types of mics differ in any given situation and you'll learn a whole bunch of recording fundamentals that will serve you well in the moment and down the road, when you're ready to unload a ton of cash on different mics, pre's, a/d's, higher bit rate recorders, etc...
I do a ton of on stage and stage lip recordings (prolly 60-70% of everything I record, actually), so once you've got your gear, if you're going to be in that situation, feel free to PM me for specific information. Glad to help.