I did the math.
(80,000 [rough amt. of IDs before steam] * $20) + (40,000 [ids from steam]*$10) = $2,000,000 (pure profits since retail released)
3613 days [since BL retail release date, Feb 24, 2007] * (5/7) [weekdays, though badspot probably doesn't work on this kind of schedule] = 2580 workdays, about
2580 8-hour workdays translates to 20645 hours of work
$2,000,000 / 20645hr = $96/hr into badspot's pocket.
A good deal of that payment probably goes to Kompressor, since he worked on development, as well as power costs for the master server. Let's assume the server, if 100% uptime, pulls 7,446 kWh/yr, which is 20.91 kWh/day, or .87kWh/hr. One kWh in Oregon costs roughly 9.4 cents, or $0.094. This means that Badspot spends about 8.17 cents on running the master server per hour, or about $698 per year.
Microsoft's total profit in Q4 2014 was $23,380,000,000.
This means that to run the BL master server for a year, Microsoft will have to dedicate .00000298% of its profits to keep Blockland running.