much depends on your situation and outlook.
Exactly, dagodingo. It does all depend on where you live, what sort of area and the availability of freedom for the Basenjis.
I am very lucky in that I live near Friston Forest on the South Downs. Part of the forest is only about 8 miles by car. Even the carpark is quite a long way into the forest from the road.
Once there, there is almost no chance that a dog can roam onto the highway. It is absolutely ideal for running dogs free. There are squirrels, rabbits, deer, to chase and you can walk for miles in a myriad different directions, following paths or, as we prefer, going right off piste.
There is an ancient carp pond where dogs that like that sort of thing (NOT Basenjis !) can swim.
It is a canine paradise where it would almost be a crime not to let dogs have their freedom.