If you're into music production, FL Studio has a lifetime license that's stood the test of time, and has kept up with or exceeded the capabilities of packages like Reason, Ableton, and Logic. It was the first to really embrace an open VST plugin interface, and has so many options that even after 25 years I haven't yet explored them all. It also comes with a ton of free instruments you can download (basically free DLC).
I picked up a lifetime license for $99 in 2001 when it was Fruity Loops 2.0. Used it for 10 years as it evolved and was amazed that it was keeping up with the big boys. That encouraged me to drop another $80 to upgrade to the producer edition to start making professional level tracks - and I was not disappointed.
The best part? The base license is still just $99. Producer edition is still $179.
EDIT: side note - the demo is actually the full software package, so you can try it out for free. The license just unlocks the capacity to save projects with the plugins that are covered by your licensing.