Yeah glad you agree. 

I had the epiphany when I had to send a fax a few months ago and ended up signing up for a free trial that included like 100 faxes a month. Way overkill. 
When I saw BitcoinFax it clicked.

There's an entire suite of services that can't sell micro-payments because the friction of typing in my credit card and creating an account for a 25 cent payment is too high.
Lightning can collapse and rethink so many fields like this.

Just-in-time micro services... at scale.

BuiltOnBitcoin

bitcoin

What's the coolest stuff being built on Lightning?

That's actually very insightful! I'm really glad you mentioned this. It seems like there exists several products on the internet which charge subscription pricing but really should not be. Those products, as you described, are needed in the spur of the moment for a couple uses but are not valuable beyond that. Those products are the perfect usecase for micropayments.