T20 leagues are not always profit making propositions. For example, the Global T20 Canada is rumored to have caused huge losses for both the Canadian cricket board and the franchise owners. And from what I have heard, the Mzansi Super League of South Africa is also running at a loss. T20 leagues are propping up all over the world, but you can't expect all of them to be profitable like the Indian Premier League or the Big Bash League. IN countries where the population is low (such as West Indies and New Zealand), it is going to be difficult.
The main reason is the saturation of tournaments and leagues around the world, IPL started this frenzy and India is a cricket crazy nation and you will find audience for majority of the sporting events and if there are more leagues and if you expect audience to turn out for every match then you might get disappointing, and may be these countries are trying to come up with T20 leagues to replicate the football leagues around the world 
.Sri Lanka tried a similar T20 franchise tournament and it flopped. In the end the Sri Lanka Cricket (SLC) blamed the failure on the BCCI, claiming that the ban on Indian players from taking part in the foreign T20 leagues was the reason behind the failure. South Africa was toying with the idea for several years, before they came up with the Mzansi Super League. And it also ended up in loss. Canada's Global T20 was also a failure in financial terms. And the Euro T20 Slam was cancelled even before a single match was played.
