Is there still a full range bait store in the Springs?
Not sure exactly what you mean by "full range" but Colorado Tackle pro carries all types of live baits and frozen baits. Their used to be one other called Outlaw Bait and Tackle but not sure if they are still around.
As a kid, I used to go to valley country tackle and buy them then immediately release them into creek. As someone who's raised reptiles and amphibians their whole lives I don't think you could ever convince me to use one of those as bait.