I ask, because that doesn't match up well with my (anecdotal) experience as an end user. When I'm searching for software to either replace something I'm currently using but dissatisfied with or when I'm doing something new (to me), I want to demo candidates so I can get a feel whether I like them or not. I don't mind paying for quality software (though much quality software is free), but requiring credit card info for even a demo is the exact sort of hurdle which I won't put up with. The cost (in time, and potentially wasted time in the future) is just too high.