Heroku or other PaaS will crash out if you're relying on the free service and get any kind of spike. Seriously, $29/year is nothing if you're an active blogger

Heroku or other PaaS will crash out if you're relying on the free service and get any kind of spike. Seriously, $29/year is nothing if you're an active blogger. It's a small fraction of most professionals' hourly rate. If you're spending any significant time writing, I'd be much more concerned about many other factors than forking out $29/year. If anything, I'd worry if it's too low, ie will it be reliable enough? Additionally, even if you know how to install blogging software (which most writers don't of course), you'll probably underestimate the effort and you'll need to keep it updated with security patches at the least.