Nah, inserting tiles is something I do out of personal boredom. I dunno, if I get overly bored tonight, or even today I might make another, just not release it for a while. My bases are all unplanned and usually aren't really great compared to the others that get submitted.
I have all of them downloaded.
I'm practicing before I post though.
Don't stop unless you really want to, and besides who cares if no one else likes them, which is wrong.
You should totally make one with tiles that nobody has made a base for.
It will be a hit.