Sooooo... After a long time planning, I'm finally getting ready to set up a Large reef tank. Thus far, my favorite size has been my 120g. I purchased a brand new Deep Sea Aquatics 185g (60.5x30.5x24) 6 years ago and it is still sitting untouched by water in my garage. I do have the excuse of having moved from TN to IL shortly after purchasing the tank. Well, now that renovations in my living room are nearing completion, I have the opportunity to set up said tank... Only snag is a local reefer has a brand new 300 DD tank available at a reasonable price. My wife gave me the go ahead to do whatever I want, but I can only have one or the other. I plan on having this tank set up for the next 10 years or so. I had just convinced myself that I could get over having a deeper tank because I don't "fiddle" with my tank near as much as I used to, but now am concerned about tank failures others have experienced with the DD tanks. In TN I had a 150g I hated because I couldn't reach the bottom. Understand I'm a 5'8" short armed Hawaiian. Drawbacks of the 185g, less fish, no larger Angels. Drawbacks of the 300DD, few inches deeper, having read about tank failures, having to buy new tank and sell other. Any thoughts and opinions would be appreciated. I would prefer more of an explanation than bigger is always better though. 