Hey, i am new to the forum! I have a german shepherd-terrier mix, rescued from an animal shelter. He is about 9 months, black, and 30 lbs. and absolutely adorable. We are looking into getting an invisible fence, and i had some questions, and would really appreciate any help! We are having the 'Invisible Fence' people come out on saturday to give us a quote...but they start at $599, which is just very expensive, but they claim they are the best... Now, i was looking at petsafe, as well as some others...what are the differences? Is there any reason why Invisible Fence is more than double the other fence systems? I have read about the dangers of having the fences, and i have no intentions whatsoever of leaving my dog unattended (he has a kennel outside anyways...so ill put him in there if i cant be outside playing with him)...and other animals coming in arent really an issue...since ill be there with him, and i live in a suburb, so there arent that many wild animals running around. He is insanely hyper, and needs to run aroud...unfortunatley my area doesnt like dogs, and there are NO fenced in parks or anything where dogs are allowed. Because of the way our landscaping is done, putting up a fence would be almost impossible, too. Anyways, if people could share experiences, that would be fantastic. Also, when he is on walks, he lunges and barks at squirrels and rabbits...i have no idea if he would be willing to run through the shock in order to catch one...so thats another issue. sorry that was so long! thanks !