The only thing I dislike about having neither is that I couldn't play ball with him. Since it's kinda hard to play ball with a dog on a leash. I dislike the invisible fence because of dogs coming in the yard (which is partially enclosed because of the garage and neighbors garages) and because of shocking Connor. I dislike a regular fence because it makeks the yard too confined and I hate mowing around it. And a kennel is just plain not an option.
cavycritters I agree with you exactly. I'm very lucky though, I don't need to leash my GSD "Harley" in the yard because my yard is three acres big. He lives in the house and only is outside when I am. I can freely play frisbie (his favorite) with him and throw a ball also, without any worries or leashes on him. I would just like some sort of a back yard fence up so I could run in the house for a few minutes or whatever and not have to worry about him. He wouldn't be left in the fence for real long periods of time. But where I live (near Panama City, FL) there's coyotes, panthers, wild boars, rattle snakes, robbers and weirdo's around, so the invisible fence is not going to be an option for me.
I live in an area that doesn't have a problem with wild animals. Unless you mean a chipmunk or a squirrel :) I've been in this area for about 2 years and I have yet to see a stray animal roaming around. (Not to say it doesn't happen, but it is very unlikely too see them)
We won't be moving till our current house sells. So we have some time to think about what type of fencing and untill we get one he'll be outside on a leash with me at all times.