How did Slack and Hipchat beat (in the short term at least) Basecamp? Basecamp costs flat $100 per month and has several other tools besides just chatting. htt

How did Slack and Hipchat beat (in the short term at least) Basecamp? Basecamp costs flat $100 per month and has several other tools besides just chatting. https://basecamp.com/ https://basecamp.com/ As an aside, I'd like to see more tools with less predatory scaled pricing.