Thousands of exchanges around the world and only a handful support lightning. Why?
Because exchanges would need a full time Bitcoin developer to implement lightning in their business which would cost $100k+
Discussion
Typical cost to production node running: 
What is the source for this data? I find it fascinating.
The average cost is calculated based on my real costs to run nodeless.io back in the day (minus the salary of course)
I have spent maybe 1 hour per year managing liquidity, do people do that?
Integrating lightning into your systems is likely where all the costs are though. Very expensive. Shakepay at one point hit me up as a potential hire to do that, i never accepted. they still don’t have lightning integrated 😅
If you are an exchange doing lots of liquidity swaps, probably way higher
This is B2B context
