How to have most fun with gear???

I am a brand spanking newbie to EDM production, creating music, & world of DJing. Luckily I have some extra cash to get started but I am stil confused where to begin. Some people suggested Ableton with Push Controller. Other peeps have suggested Massive Studio, and I recently watched a video of Kontrol and the new keyboard controllers. I am a guitarist for 35 years, went to recording engineering school 34 years ago, and used to have a 24 track studio at home using the external 24 track recorder made by Roland called VS 24 for us old timers. Sowhat do I buy first that will not turn me off from getting back into music production, recording & Djing. Do I start with Ableton without Push to learn the software? Or do I get Mashine studio and use as a stand alone for a few months to learn beatmaking. Or do I buy Komplete with one of the new keyboard controllers. I just don't know what to do or where to start. Any suggestions we be greatly appreciated. Thank you all.