I never said it was the best solution. But if money is that much of a concern you can buy a cheap K-mart bow and hope for the best. So just because you spend a lot of money on carbon arrows doesn't mean it can't be cheaper.
You really think rifle hunting is challenging? I guess it could be depending on how plentiful the game is. In Ohio rifle hunting is not allowed, but if it were I could snipe a deer any day of the week from my back porch.
No you couldn't. Once you started shooting at them the deer would find a different place to hang out.