Inverting in digital business

I’ve got some cash ready and I’m thinking about dropping it on a ready made digital store (you know the ones with printables, templates, courses) They hook you up with everything: site, products, setup, like ecomzy promises. You just pay upfront and manage it casually for passive income. Sounds sweet ,right?? Digital margins are nuts 90%+ so is this a solid long-term investment play or just hype? Need a real story. Anyone actually invested real money and hit ROI?