There's nothing much to add to what the others have said. I started using SAS end of 2015, and realized how much I had missed without it. But it wasn't too late picking up from that point and just forging ahead. I've not looked back since. Makes me deliver on all that is required of me as a Business Intelligence Analyst, to the extend that, when I'm looking at job postings, I'm more interested in those requiring SAS.