I do think a transparent pricing structure is important though. I generally assume that 'call us' means 'if you have to ask you can't afford it', and immediately skip over any service that doesn't let me immediately calculate a specific number I'll pay every month, and I assume that 'schedule a demo' is like 'schedule a webinar', and that you're targeting your business (and pricing structure) towards C-level execs or upper management rather than the people who are actually implementing policies.