Oh, and while the fence will stop your dog from going outside of your yard that's all it will do. It won't stop another dog from coming into your yard and possibly hurting your dog. It won't stop some little kid from wondering on to your property and getting bitten. It won't stop some a$$hole from coming into your yard and trying to hurt your dog. You get the picture...
exactly the reason our dogs are indoors. A PITA to keep the house clean but much better then invisible fence IMO. There's kids and other dogs in the neighborhood, plus where I live the stupid Neighborhood Association has a no-fences rule anyway.
My mom got lucky with her dog though. It's a Lab, and is very territorial. It is a definite descendant of Houdini, because it will escape teh confines of the fence and chain without exception (no choke collar used btw), but all she does is jump the fence to sit on the front porch. She doesn't leave the confines of my mom's yard, and will not bother any dogs as long as they don't step in her yard. She's not mean, and doesn't bite, but is very vocal and will let other dogs know to back the truck up if they come close. My mom could live with that dog in the country and she'd be fine. My labs on the other hand would have to explore every knook and crannie available to their four legs. They don't stay around like thier mother.
Long and the short----I'd not recommend an invisible fence. They're expensive, require a lot of training for the dog to properly learn it's boundaries (usually 30 days using flags at first to dentore the fence so the dog knows where the shock line is----but the "Invisible Fence" Brand people say to get a dog to properly obey the Fence does take time and training.
If you really want a dog, I'd get a dog for indoors. There's plenty of breeds that are great. Only one I wouldn't recommend is a Warmaranher (sp?) b/c my wife works w/ a guy who has an indoor one and he says it's hell b/c the dog is one that likes to be outdoors to be able to tap into it's undying energy. Big Dog wise----if you can get one without the slobber/drool, I've read a bunch of articles that say that Mastiffs are great indoor dogs, and even get along with other pets as long as the other pets are there first. An inlaw has had pit bulls for 20 years and says they're the best indoor dog they've ever had.
Anyway---good luck. Having an indoor dog is a lot of work, and eventually you'll realize it's worth it because the dog no longer is just a pet, but a member of the family.