Most subscription services are too expensive for the average user. They're great for B2B but as a user I rarely get enough value out of them to subscribe, with some exceptions.
$5.00/mo is the gold standard, but when you pay for multiple $5.00/mo services all that adds up. That's why I like services offering super cheap $12/year plans. If it means I get a bare-bones feature set as opposed to more expensive tiers, then I can live with that.