I see your point, and its not a marketing imho. In some cases i agree that there are mature alternatives, but what if you dont want or cannot use them. For e.g

I see your point, and its not a marketing imho. In some cases i agree that there are mature alternatives, but what if you dont want or cannot use them. For e.g. Dropbox is a great file storage/sync service. But you may not be able to use it inside an enterprise and store office/confidential documents. I think its essential to know and understand various ways in which a tool can be used. So that you can apply it to solve/simplify a problem. Its not a marketing.