B2B Customers will actually pay for your products.

B2C is way harder to monetize unless you’re at massive scale because no one wants to pay.

When asked how much people would pay for Facebook, it’s a fraction of what Facebook actually makes from ad revenue. Consumers are price sensitive, so you often need other models that rely on some other element, like data, to make sufficient money off consumers.

In B2B you can just charge a price and the company will pay if the product is worth that much to them. Then, over time you can improve it and charge more. Also, it turns out that most everyone in B2B is charging too little.

— Justin Kan https://pt.slideshare.net/saastr/why-i-now-love-b2b-more-than-b2c