I don't feel so, no; in my particular case I'm only realistically going to leave if I'm headhunted. That said, I know from first hand now (having sat in on the interview process enough times) that in my position the right candidate will often get the job (if its external rather than a promotion round).
Sure, when I was young (In my day /sniff), anything more than a months notice would be a disadvantage, but I'm at that stage of my "career" where if I'm the right candidate 3 months notice is nothing. A lot of my colleagues have 6 months gardening leave in their contracts and would not struggle to walk into another job.