True that but there are some budget scopes out there that perform quite well, one of them is the basic Bushnell Banner series. Dad has a 3-9x40mm scope on his .270 and it is pretty darn clear and holds a zero like none-other.For the rifle alone, you can't hardly go wrong with either a Remington 700 or a Winchester Model 70. But to get the kind of performance out of them they are capable of delivering, you're going to have to spend as much on the glass as you did on the rifle.
My favorites in the "under $700" price range are the Weatherby Vanguard/Howa 1500, the Savage 110 and it's variants, the Ruger M77, and the Remington 700. I have had nothing but good luck with all of them, and would trust any of them to get the job done in whatever conditions I am hunting in.