My first bc was a seaquest jacket I bought in '80, served well until 2001/02 season when bladder went and SQ no longer had replacement bladders left on shelf. As I wasnt' diving much at time I waited till 2006 to replace it with SQ ProQD which I had tried out the year before(borrowed a buddys) and am expecting to enjoy it for a least a couple of decades as well. But if you want another, I say go buy one, then you can always have a 'loaner' till your oldest model gives up the ghost.