I run my companies hubot on a $5 a month Digital Ocean instance. It's also far easier than using Heroku because it's just a regular linux server and not a managed/restricted instance.
I'm in the same boat with my blog. I'm not paying $7 for a single dyno when it's footprint is no-where near 512 mb. They should offer a smaller dynos at say 128 mb for $1.75, that I might be interested in.
I'll be interested to see what they do to my existing apps.
Viable business models for B2B businesses that involve charging the price of a fountain soda per month for anything are few and far between. Just charging your card that dollar costs a quarter or two, and sets up expectations that free tiers don't come with. So you may want a $1.75 fully managed PaaS, but it's doubtful anyone wants to sell that to you.
Indeed, which is why they'll probably lose a lot of people.
I'd be happy to put credit onto the account to use the smaller tier, or PayPal it or something, but I'm not paying for a big footprint that I'm not using.
Ah well, guess I'll need to properly support that hubot now.