It might
seem insignificant because it's only 20% more flight time, but it can be very significant. Assume it takes 10 minutes to reach your point of interest/destination and 10 minutes to return. That leaves 5 minutes for shooting. If I need/want 10 minutes of shooting time at the destination, that requires
two round trips to get 10 minutes in, taking up 50 minutes total flying, and another few minutes in between flights to swap cards and batteries and relaunch. If I can
extend my flight time by a mere 5 minutes per flight, I have
doubled my shooting time at my destination and can complete it in
one trip, taking up exactly 30 minutes, cutting my
total time almost
in half!
Now, assume it takes 12 minutes to get there, and 12 minutes to return, leaving only 1 minute for shooting. If I need/want 6 minutes of shooting at the destination, that requires
six round trips, or almost 3 hours total. If I can now extend my flight time by a mere five minutes, I can complete my task of 6 minutes of shooting at a location 12 minutes away in a
single flight, saving two and a half hours. The farther away your subject is, the more
impactful the extra minutes of flight time can be!