A little late coming into this thread, but I was surprised to find it is the only one on POTN about Plotagraph Pro. Gotta say this has been a fun toy to revisit a whole bunch of old shots with. I have been enamored with cinemagraphs but didn't go far with it because it requires video. Plotagraph starts with a still image, so that made things super easy. Yeah, the $300 is steep and I have to think it is an "early adopter" price. Sharing GIFs online is a little cumbersome too because it requires using another sharing site specifically for GIFs. If you have the money to play around with, then do it. But I wouldn't buy this over a new lens as things are right now.
Here's one that took about 3 mins to do.