Standard response: A 12 pack, a buffalo wing, and a prayer.
Real response: Approximately $12K in hardware & software (and miscellaneous) and 6 months worth of time and effort setting up actual physical gear and non-tangible foundation. (remember... *start-up* costs... )
(this estimate has been trimmed to only include actual straightforward startup costs from the day the word "GO!" was laid in stone.... it does not include the time invested in years of practical experience, research, ongoing operating expense or the almighty learning curve. Would be damn hard to put a price tag on all that....)
it's been a damn fun ride so far..... things are ever changing.... and you must be ever adapting.... you gotta ride that fucker like a big ass wave off the North Shore.
(or be eaten by a shark)