I've read more articles than I can count in the last few years saying that Guitar Center was doomed and would be boarded up within months. Yet, whenever I drive by my local GC, it always seems they've managed to figure out a way to keep doors open and lights on for just a few more short hours bless their hearts.
Does that mean the pundits are wrong? The way I see it you can pick any company on the planet and start writing articles claiming said company will be out of business in months. And if you keep saying that long enough, sooner or later you'll end up being right. You might have to say it for a couple hundred years, but sooner or later, every company folds or gets absorbed or otherwise ceases to exist.
Same with Sonar. I suppose sooner or later there will come a day when Sonar is no longer a supported product. It would be foolish to believe otherwise. I still feel pretty confident that I will realize a satisfactory amount of value for my investment in lifetime updates.