read up on lead funnels. i'd wager you'd be better to offer the $5 premium accounts via email to your free members (after they've used the product) than showing the low price on your homepage.
if a tool is awesome, it's invaluable. once its invaluable, it can afford to become less awesome (see salesforce)
add an email capture tool like drip to get contact with folks who want to follow but arent yet ready to commit.
remember, "expensive = good" see cialdini - http://goo.gl/9vvE8S
add some testimonials to add social proof
read up on lead funnels. i'd wager you'd be better to offer the $5 premium accounts via email to your free members (after they've used the product) than showing the low price on your homepage.
if a tool is awesome, it's invaluable. once its invaluable, it can afford to become less awesome (see salesforce)
add an email capture tool like drip to get contact with folks who want to follow but arent yet ready to commit.
Best of luck!!