the other thing to remember too is you're not just subscribing to C4D. You have to pick a renderer since Maxon doesn't believe in giving you a working solid GPU renderer. You also have to buy a dynamics particle simulation solver (XP) because Maxon stopped development of TP about 10 years ago. FLIP and Fluids.... not in C4D. Buy that. Sculpting in C4D.. well you can, but they would rather you sub to Zbrush. Body Paint.. nah you need to sub to Mari, 3DCoat or Substance. Real UV manipulation.. need Rizom. UDIMs? Are you kidding.. not 100% supported via the UV editor. You need to "trick" it. Most of those require subs.
There are also the extra plugins for C4D, many of which are around $30-100 and are only updated when a recompile is needed for a new version of C4D. That's old school premium pricing which needs to go away in this day and age. Sorry but $60 for a greeble plugin? Compare that to something like Blender's addon developers who charge routinely under $30, many close to $15 or so who are making the same kinds of plugins (eg. RandomFlow for Blender - $15.. updated about ever other week).
It's not just the cost of the subscription to C4d but all the extras to help shore up the "vanilla" version of C4D for use in various productions. You can easily spend over $2K a year in subs to keep a C4D pipeline running (c4d, xp, renderer, zbr, paint, and more)