3 ms·$7? You absolutely did not look very hard. I just checked UK Amazon and found them for £1by permo-w 5y ago$7? You absolutely did not look very hard. I just checked UK Amazon and found them for £1mrfusion 5y agoI just checked again in America. The cheaper ones seem to have very high shipping costs.permo-w 5y agoI included shipping. Maybe American amazon is different in some way