Funny, I was thinking of going the other way, so aside from the, costs; apparent steep learning curve and uncreative work flow mentioned;, the feeling of being assimilated by PT-Borgs (LOL); or perhaps what may be the clincher, when potential clients say "Ohhh, you don't use Pro-Tools?". (Its a somewhat expensive and time intensive proposition, but I may bite the bullet, just so I can honestly say to clients, "Yes, I have Pro-Tools", (but don't necessarily use it, unless forced into submission).
What else would anyone say to discourage me from, crossing over to the dark side and submitting to PT assimilation?