I just received a quote for an Ikelite D500 housing and they asked me if I also wanted a quote on the vacuum kit. I have owned Ike housings for the D70s, D80 and D300 and never had a problem. So I ask myself, is this leak detection system worth another $185?
It certainly makes sense to protect my investment, but never having owned one I wonder it it's a gimmick or a necessity. If you have one - for any housing - do you think it is a justifiable expense?