Oh, be careful with talk like that. Never guarantee a ROI; somebody might take you seriously and thence to court.
And I don't mean that entirely seriously but I don't mean it entirely un-seriously either.
(I'm pretty sure that I could come up with interesting statistics that no one but me would care about, even if I included really nice graphs. I have a gift for irrelevance.)
RE: SteemSQL is moving to a monthly subscription model