alt Hacker NewsEh, no, depends on why you used Heroku in the first place. Way back when, I used it because the UI was dead simple and it Just Worked™. If I can replicate that with a VPS and have a good UI around it that takes care of everything, it's functionally the same to me.
"Depends on what you used it for" applies to just about any platform.
Realistically, self-hosting the PaaS defeats the purpose of a PaaS for the crowd Heroku was attracting.