I would leave Adobe but my company has an enterprise license with them. I don't really need anything they offer now except After Effects. I could get away with Affinity Photo and my old FCPX license. Affinity has an inDesign competitor coming soon too.
After Effects just doesn't have a good alternative yet. A company called MainFrame has a more modern, properly procedural motion graphics app called Cavalry coming out eventually. Until it's out though I'm stuck with AE.
FYI if you didn't know, Adobe bought Allegorithmic. If you want a perpetual license to that $300 still gets you the 12 month sub and the upgrade to perpetual. Substance is definitely worth having if you plan on doing any bit of 3D and $300 for 3 applications and a year of access to their online content is a steal.