When I started this hobby, air compressors where VERY expensive. I was stuck with a silly scuba tank and many trips to my local dive shop. I eventually bought a cheap crappy compressor off ebay...but it worked GREAT for about 4 years, then it took forever to fill a gun. I now have an Air Venturi RovAir. A compressor made the sport the most fun for me....air air air..alll day long!!!!