There is a market (I'm part of it), but it's hard to say how large it is.
FMInc may have a better idea, but it obviously doesn't see a business case for it, since it has narrowed its focus even further by offering v18 only in the Advanced version, to individual developers (who can recoup the cost in their business) or selling multi-user license setups to larger companies. Plus, the experience with Bento may have soured any future prospects.
Creating DBs, even simpler ones, takes more effort than a typical office document like a spreadsheet, and that's only if a user has the desire to organize and manipulate their data. Ready-made templates may ease the process, but they only go so far, and would require effort to customize.
There are already apps that cover the specific needs most users have to organize finances, passwords, contacts, etc., and other stuff can be managed in an office suite.
I wish it was different, but active developers selling solutions, and business that need tools are going to be more reliable than fickle end users, who won't pay subscription fees, or for annual updates, and may just call it quits when their obsession with collecting and cataloging their Beanie Babies wanes along with everyone else.
