I think so. I literally will not look at most services unless there is an on-prem option. To the extent where I will regularly design my own solution instead of deploying something Cloud based.
How turn key do you expect the self hosted option to be? If it contains a lot of other software like SQL and Redis, would you be comfortable installing it or would you expect the option to bundle it in some kind of installer? Would you be OK with using a container, or would you want binaries?
In my dream world, all open source software would consist of a single binary and the only third party need would be a DB (preferentially Postgres or MySQL).