As mentioned before - these prices has to be seen as donations. And yes, this a lot of money.
If you are interested in flight sims like X-Plane you will get to these prices quite fast - besides hardware (Hotas, Pedals, TrackIR/Occulus, MFDs,...) also for software, be it planes, airports, addons (advanced FMS...), real navigation data (Navigraph), charts, etc.pp.
In fact this question can't be answered in a general manner. You simply have to ask yourself if it is worth to YOU, is the risk bearable for YOU, are YOU willing to support the development by donation and finally are you able to pay that price.
For me the decision was not so easy but finally answered these question with yes - but this is my personal decision.
So - to come back to the original question: Yes, I think it is worth!
Other say "no" and thats equally correct to my opinion.
Have fun!