[Swizec]

As a small business advertiser: Facebook is awesome. Nowhere else can you get $400 of sales for $10 in ads. That's a 40x ROI.

[jonknee]

Your ROI is from profit, not revenue. You can easily get $400 in sales for $10 in ads if you don't care about profit.

[nickpsecurity]

You can get it for $0 in ads on Craigslist. ;)

[exodust]

So every time you spend $10 on ads, you get $400 of sales? And if you spend $0 on ads you get $400 less revenue for that period?

Sounds like fake news to me.