ok here is my two cents, not that it means anything but, here it goes...
my mother has 3 cocker spaniels and for the past like 7 years she had them chained up because she lived in the country ( literally less than 600 people in the whole stinkin town), and it broke her heart to have to do it, she had no fence ( she too has escape artists), the pups would dig HUGE holes in the yard everywhere.. they would howl all the time, they would bark ALL the time, she had to buy those collars that made them not bark ( imagine that in the COUNTRY dogs can not bark or ya get a ticket for it) it really tore her up bad.. then, last year she was able to save enough money to build a 60 foot long 30 feet wide dog run with the 3 dog houses and a tarp on top for shade and protection from elements, it looks way cool too, she loves the fact that her dogs can run and play and jump all they want and they can not get loose!!!
AND OMG what a difference it made, the digging stopped, the howling was only when the curfew bell went off, and the barking was down to only when a truck drove onto the property.. WHOOOOOO... the dog run is complete with a chain link fence on top ( to prevent escapes) and she has a double entrance, so the pups do not get out. it works for her and the pups could not be more happy..
IMO people who have the wide open spaces and do not want to tether or chain their dogs could look into something like this, it works, you can make them as big or as little as you want. yes, it may cost alot in the beginning, but, in the long run, it will do your pup good to be able to run with out being tied up ... keep in mind this advise is for people who have to have their pups tied up for MORE THAN a few hours at a time. this would be a more permanent solution to tieing up your dog, but, again just my 2 cents.