OP, listen to Hitzy. You will buy a dozen knock off, cheap scopes and then all of a sudden you will put out enough cash to buy a decent one. You won't go back and you will kick yourself for not doing it right the first time and spending enough money to pick up a high end product, as you should have done in the first place.
Save your pennies until you can afford a decent scope with decent optics. As mentioned, the Bushnell Elite models are a good start.
One of the big problems with scopes like the Barska's is that they have very a very shallow depth of field. They were designed for the shooter that shoots at set distances. For example 25 meters, 50 meters, 100 meters etc.
They quickly lose focus and their paralax goes out of whack at every slightly different range change.
If you shoot off the bench at fixed ranges regularly and don't go into the field and shoot at differing ranges, the Barska will work.