Apple Logic Pro /LogicExpress Discussion

As a pro video editor since 1992, I have been doing all of my post  
audio in Avid.  Last month, a a mix-to-pix job came in, so I did the  
whole feature film in Logic Pro/Final Cut Pro.  The job went  
flawlessly, and I was really impressed with Logic!  We had the  
premier at a local theater here in New York.  I was blown away.  So  
here is my question ---  what's the big deal with ProTools?  Am i  
missing something ...  it seems like Logic Pro can everything that  
ProTools can, do everything it can do...or, is there a specific  
reason to go the protools way over the logic way (aside from what the  
engineer knows how to use)?

John