Great app, I would love to keep using it but it's a little too expansive, unfortunately. I hope the payment plan will change. Then I'll install it directly.
Thanks for your feedback. Pricing is based simply on usage and scales with your growth as a store. On top of that, with the increase in conversions from Ping, it can actually pay for itself. This means it not only increases your revenue but becomes free as a result :)
Hope that helps.