My only used purchases have been off the same bloke on here... One nearly new, one brand new just built up. Too many ads say great condition, no problems, only to be told when you ask that x and y don't work, but it's in good condition...! Though that SCT you bought looked fine, just assembled wrongly! Buying budget brands or used allows me to be greedy and have more than one.. I just treat them a bit more carefully..