closed as primarily opinion-based by Stephen Rauch, wacax, Aditya, timleathart, Toros91 Apr 6 '18 at 1:09
Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.
There are a lot of services that offer free or very cheap hosting of static websites. If you are able to implement your ML model in JS this allows you to deploy your product/app/whatever easily and with low cost. In comparison, requiring a backend server running your model is harder to setup and maintain, in addition to costing more.
It is a bit technical and depends where you use your