I don't really see it as a reseller tool. You might think its cheap, but if you really want to resell it's not. Take YouTube for instance. You can buy cheap views, if you want views, you'll need comments. The comments are very expensive. Your friends see your views and comments are really high, but what about subscribers? You need to buy an equivalence to those, and that is a TON of money. Social Media Marketing is a joke, especially with panels like those where it's not technically even real.
ALSO, this service is still fairly expensive. There are other SMM Panels that sell 140k followers for $220 I believe? This one sells 100k for $300