There are 22 million Native Dutch speakers in the world mostly in The Netherlands and Belgium, with many German's speaking Dutch before English as well. Moreover, Afrikaans in South Africa is developed as a result of the Dutch occupation there and thus learning Dutch will give you excellent communication ability in South Africa too.
The Netherlands and Belgium represent major trading hubs and using the common rule of “you buy in your own language but you sell in the foreign language.” learning Dutch will be necessary for those who wish to trade here.
There is currently considerably higher demand for Dutch speakers than there are people speaking Dutch available. As such, job prospects are strong.