I can not find a newbie areea on this forum so I apologize for this question here. I try to find as much info as I can before buying Mini Pro 4 so I'm a little confused and not sure about this issue. This "under 249 g " or " doesn't require registration" statements are always mentioned when drones are advertised but the registration for recreational purposes is only $5 valid for 3 years if the drone uses extended batteries. so my question is what are the dissadvatges of FAA registration if any? I see benefits of having larger batteries but maybe I'm wrong too? Slightly more expensive but extended flying time.