I pretty much take every upgrade. In Aspire there are a number of things that are "worth it" to me. Worth it is pretty much defined be the user. Beauty is in the eye of the beholder.
I sell stuff and I use the software all the time. It is a big part of my life. So, I upgrade.
I don't upgrade everything, but Vectric, Lightburn, Adobe Essentials - I upgrade.
On the Aspire 3D roughing there is an option to avoid cutting that which was already cut. I am programming a Mermaid for a customer. It is 4 feet long. In Version 10.5 the rough cutting was 1 hour 21 minutes. In Version 11 it is 36 minutes. He makes these to sell in his shop. The time difference is HUGE to him. For me, it is one sale and he would have bought the program either way. No matter what, he is a repeat customer and his business alone will pay for the upgrade. He is a really good customer and I like to take care of him.
Also - there is some really cool clipart offering as well. I bought the Waterside collection.