I feel like presidents spend way too much of their first term campaigning for the second and splitting that attention causes a lot less to get done than what's supposed to. If there were no limit on terms, would it mean they'd be constantly campaigning and possibly playing it safer just for the sake of being re-elected instead of doing what they want/need to do with their job? If that were the case, I wouldn't want it. However, it could also be looked at as "Oh well I can't just campaign forever so I'll just do my best now and not worry about re-election" since there's no limit and they could always come back...I'm not sure. I just don't want so much time to be wasted by the president on campaigning.