First two misconceptions are that hitting 1000 hours PIC turbine time is your ticket out of the regionals and that regionals should be treated as a " get in, do your time, and get out" type of thing. If that really was the case, there would be no CAs at regionals with more than 1000 hours. Ask yourself this, how many CAs does your airline have with CAs over 1000 hours TPIC time.
Misconception number two is the time it took a guy to upgrade today is how long it will take a new hire today.