All of you that keep talking about purchasing power and cost of living in BD are missing the point. National team contracts shouldn't be compared to the average salary in BD, it should be compared to what the player can potentially earn playing in T20 leagues. This isn't a problem yet because we really only have Shakib. But it will be a huge problem in the future.
Even Afghanistan just announced their own T20 league as well. And check out the calendar:
We've gotten to the point where every month of the year has a T20 tournament going on. Someone like Ronchi, Shakib, Narine, could easily play in all these leagues. You don't need to have a national contract to play cricket year around.
A BD cricketer that's good enough could easily earn a lot more money playing T20 leagues instead of the BCB contract. That is the main issue. Shakib leaves a lot of money on the table everytime he has to leave KKR to play for BD. Count our lucky stars that he still places value on the national team.
But future BD cricketers may not care as much, especially if they are not getting any endorsement deals to subsidize their salary. BCB has to pay more to their national cricketers so that those T20 leagues are not as attractive. This is not a problem for Aus, Eng, Ind, because their national contracts pay as much or higher. That's the difference.