I discovered Max through Ableton Live, now a solid 10 years ago: after I had made up my mind that Ableton Live was going to be my de-facto DAW I soon discovered Max for Live ("M4l"). Not knowing exactly what it was I still immediately recognized its potential so I expanded on my initial purchase and got M4l too. A purchase I never regretted! Eventually I crossgraded to Max 5 and also started using Max itself more often. Fast forward to modern times and I still enjoy both M4l & a stand alone Max (8).