Hivefest is an industry conference.
Of course these prices are not that expensive for developers, for programmers, nor for businessmen. They have much above the average income, not something like $200 USD per month, as a pension-like income, which is below even the minimum wage in Hungary.
This all depends on where in the world one lives though x)
My salary is 2488 usd a month after taxes.
But my bills are 1463 usd a month.
Depends on your country and what you do.
This is also true. Your country, your occupation, your circumstances (owned house, rent, something else, your consuming habits). There can be huge differences even in the same country.
Exactly