People need to remember unless you are made of money you need to factor in resale price of your P2V then the purchase price of a P2V+. Assuming a generous 0.66 of new price for your mint P2V you'll have $800 towards your $1350 shipped P2V+, meaning it will cost you $550 to "upgrade". This gives you a 3 axis gimbal-cum-camera unit that looks at the moment tied into the P2V+ airframe. If you are happy to tie into that airframe and hit a camera upgrade dead-end then that's a good move for you.
If you feel you may want to upgrade aircraft and camera at some point in the future then an airframe-agnostic gimbal (with 3rd axis option) with various camera mounts will cost less now, and much less in the future. Something for everyone - hence why DJI are still making and selling the Vision. Whatever you choose, enjoy it. Aaaand back to discussion about the Rotorpixel... (or for some of you, constantly telling us how glad you are you didn't buy the Rotorpixel or cancelled ages ago.

)