new tubes-any of them any good?

[cas3]

years ago we had terrible tubes from east europe somewhere, they fell apart at the seams. then, vietnam was next, they were ok, i never had one fail. now lately i have had flats like crazy. the ones i was buying two years ago were from taiwan, now have new tires and tubes are from china. one tire only went 100 miles and had a flat. i broke it down, and found a pin hole, like a nail, but there is no hole in the tire. its new and clean, i can see no hole. looking closer to the tube it seems that there may have been an air bubble in the mold and its a thin spot. does anyone make a good tube today? i drive my cars a lot, gonna wear out my tire irons at this rate!