I really like how the author posted the fake pricetag before spending time implementing payment processing - easy way to verify people will pay for it, low cost

I really like how the author posted the fake pricetag before spending time implementing payment processing - easy way to verify people will pay for it, low cost of experimentation. I've heard of other companies using similar strategies like a/b testing features that don't exist yet to figure out what they should build next. Congrats!