SaaS software is not generally zero marginal cost since you run the infra, have support, etc, but maybe in your situation is close to zero since its very simple.
If you have no sales, but your costs are very low, you should try it.
The main reason not to would be costs or cannibalizing your higher value customers (which you don't have).
If you have no sales, but your costs are very low, you should try it.
The main reason not to would be costs or cannibalizing your higher value customers (which you don't have).