I'm sorry to hear about your losses. But instead of quitting saltwater, have you considered a jarquarium? No, seriously -- they're great, and a lot easier than people think. They can also be much, much cheaper to run than the full tanks, because you literally only need a light source and an airstone to keep them going, although I also do heat most of mine. I turned a beverage dispenser into a tank for a Catalina Goby at work (it's unheated); in another, I keep a gorgonian, trumpet coral, blue cloves, a KT frag, snails, and an urchin; I have an unlit, unheated third jar where I quarantine incoming snails (trochus snails, and they're fine). You can build amazing ecosystems in miniature, and you only need about 1g of water to do a water change in a 3-4g build. Algae and pest problems are also much easier to deal with when you can clearly see what's getting out of hand. Yes, big tanks are great, but I spend much more time looking in my jars.