I probably would if I wanted it bad enough. I have a cat that I paid $600 for and she is now 12yrs old, my kids love her and she is great company. I would go with the one that you can get desexed straight away though.
If you spend that much on a dog it would be worth getting 'pet health insurance' in case she does get hit by a car.
Trillian also has a very good point about in breeding, so if you know anyone who shows dogs or a Vet perhaps take them along when you pick.