The P3 is about six years old now.
The advances in drone tech in the last two years are mind blowing. Never mind six years.
The Mini 2 is currently owned by 50% of our members - probably because it’s highly portable and allows you so much more freedom under todays regulations.
It might even out-spec the P3 now too? 
And a new Mini 2 is probably cheaper than a second hand P3.
And, and and… 