Something like "[myarea] open locked door" can have Google ad bids in the range of 30$,so there may be money in there for Google not caring for quality organic results
> You can have all the merits in the world, but if people don't know about it then you're out of business.
With the rise of social media, this is about 20 years out of date. If you have a great product and 100 users, 1000 people are going to see glowing testimonials at zero cost.
I strongly disagree. You're thinking purely from a software point of view - advertising is still extremely useful for any kind of local business or startup.