I put a 1 buck dollar tree screen protector on my "new" ipad.
I have a gouge on my ipod touch 4th gen and while I am still debating screen protection and case issues, if it does not bother your usage, and you get a fair price then whats the harm, and it might have prevented my screen gouge (though I did drop it naked onto a tile floor, after it slipped from my hands ) [sorry Steve RIP, but form only works when it's not a slippery bar of soap, with a battery that's wayyy to small]
I have a gouge on my ipod touch 4th gen and while I am still debating screen protection and case issues, if it does not bother your usage, and you get a fair price then whats the harm, and it might have prevented my screen gouge (though I did drop it naked onto a tile floor, after it slipped from my hands ) [sorry Steve RIP, but form only works when it's not a slippery bar of soap, with a battery that's wayyy to small]