"Newps" wrote in message
news:HNE5c.21813$_w.486759@attbi_s53...

You are never out of contact with ATC, how could this be a factor.


You're not in contact with ATC when you've switched to CTAF.



ATC is talking to you at all times. That is much better than a computer
keeping track of you.


ATC is NOT necessarily talking to you at all times. Even while enroute
there are areas without direct pilot/controller communications.