Evolution of SW Tanks

[GracieLou]

Being a person who enjoys fun facts, knowledge and history I thought it would be neat to start a thread on the progression of this hobby! People who have been draining their wallets at this for years please post how long you've been at it, maybe even what was popular or the "new big thing" at that time and changes/advancement over the years. Anything from equipment, technology, prices changes, corals/fish that were once thought of as impossible to keep that are now common, fun facts or even funny stories from older tanks!!

Having my hands wet for only 2 years in saltwater tanks I am still very green when it comes to it and don't have much to share of my own experience. However the thing I have noticed the most is the advancement in LED lighting.
Now it's your turn!