some things people tend to neglect are logistcs costs/risks and customs risks (outbound and inbound).
it may be virtually free in kuwait or venezula or malaysia etc... but what will it cost to get your rig/machine there and will it get stuck in customs?
these are things that i believe need to be factored into any decision...
Well is it also that cheap if you use a lot of power (like 1-2 GWH)? And is the grid able to deliver stable this amount of elec? (most installation do not support such an high elec drain)
BTW: Malaysia is not cheap at all....