Curtis, Not being condescending at all. Matter- of- a- fact, yes. I dive Open circuit also, quite a bit. Each style of diving has it’s merits & limitations There is absolutely nothing wrong with diving OC or CCR. That is why I put this in the Technical Diving area. Most Newbies are not immediately looking to dive technical. I understand, Yes, they are expensive to buy, yes they are expensive to maintain, yes, The training is expensive & they do require an intense attention to detail. I have already mentioned all this in the original post. Even so, there those that are interested for one reason or another. Just because something does not suit you, does not mean it does not suit another. If you are good with OC diving & it suits your purposes, that’s good. If others want to dive different ways,.. that is good also. Please stop reading things into my posts that are not there.