Boosting services are usually very expensive, and the thing with them is that you will not be playing on your true skill level.
So eventually you will derank back to the true rank of yours. I guess some people will pay if you offer the service cheap enough to them, instead of offering such a service with really high prices.
Honestly, I feel that boosting would benefit me as a player as by learning how to effectively carry a team, I get better as a player while also helping someone else. I'll probably charge extremely minute fees if any at all. I'm willing to undercut any current fees on this forum if anyone is interested.